feat: InstantID初始化提交

InstantID/gradio_demo/app.py

+import sys
+sys.path.append('./')
+
+from typing import Tuple
+
+import os
+import cv2
+import math
+import torch
+import random
+import numpy as np
+import argparse
+
+import PIL
+from PIL import Image
+
+import diffusers
+from diffusers.utils import load_image
+from diffusers.models import ControlNetModel
+from diffusers import LCMScheduler
+
+from huggingface_hub import hf_hub_download
+
+import insightface
+from insightface.app import FaceAnalysis
+
+from style_template import styles
+from pipeline_stable_diffusion_xl_instantid_full import StableDiffusionXLInstantIDPipeline
+from model_util import load_models_xl, get_torch_device, torch_gc
+
+import gradio as gr
+
+# global variable
+MAX_SEED = np.iinfo(np.int32).max
+device = get_torch_device()
+dtype = torch.float16 if str(device).__contains__("cuda") else torch.float32
+STYLE_NAMES = list(styles.keys())
+DEFAULT_STYLE_NAME = "Watercolor"
+
+# Load face encoder
+app = FaceAnalysis(name='antelopev2', root='./', providers=['CUDAExecutionProvider', 'CPUExecutionProvider'])
+app.prepare(ctx_id=0, det_size=(640, 640))
+
+# Path to InstantID models
+face_adapter = f'./checkpoints/ip-adapter.bin'
+controlnet_path = f'./checkpoints/ControlNetModel'
+
+# Load pipeline
+controlnet = ControlNetModel.from_pretrained(controlnet_path, torch_dtype=dtype)
+
+def main(pretrained_model_name_or_path="wangqixun/YamerMIX_v8", enable_lcm_arg=False):
+
+    if pretrained_model_name_or_path.endswith(
+            ".ckpt"
+        ) or pretrained_model_name_or_path.endswith(".safetensors"):
+            scheduler_kwargs = hf_hub_download(
+                repo_id="wangqixun/YamerMIX_v8",
+                subfolder="scheduler",
+                filename="scheduler_config.json",
+            )
+
+            (tokenizers, text_encoders, unet, _, vae) = load_models_xl(
+                pretrained_model_name_or_path=pretrained_model_name_or_path,
+                scheduler_name=None,
+                weight_dtype=dtype,
+            )
+
+            scheduler = diffusers.EulerDiscreteScheduler.from_config(scheduler_kwargs)
+            pipe = StableDiffusionXLInstantIDPipeline(
+                vae=vae,
+                text_encoder=text_encoders[0],
+                text_encoder_2=text_encoders[1],
+                tokenizer=tokenizers[0],
+                tokenizer_2=tokenizers[1],
+                unet=unet,
+                scheduler=scheduler,
+                controlnet=controlnet,
+            ).to(device)
+
+    else:
+        pipe = StableDiffusionXLInstantIDPipeline.from_pretrained(
+            pretrained_model_name_or_path,
+            controlnet=controlnet,
+            torch_dtype=dtype,
+            safety_checker=None,
+            feature_extractor=None,
+        ).to(device)
+
+        pipe.scheduler = diffusers.EulerDiscreteScheduler.from_config(pipe.scheduler.config)
+
+    pipe.load_ip_adapter_instantid(face_adapter)
+    # load and disable LCM
+    pipe.load_lora_weights("latent-consistency/lcm-lora-sdxl")
+    pipe.disable_lora()
+    def toggle_lcm_ui(value):
+        if value:
+            return (
+                gr.update(minimum=0, maximum=100, step=1, value=5),
+                gr.update(minimum=0.1, maximum=20.0, step=0.1, value=1.5)
+            )
+        else:
+            return (
+                gr.update(minimum=5, maximum=100, step=1, value=30),
+                gr.update(minimum=0.1, maximum=20.0, step=0.1, value=5)
+            )
+    
+    def randomize_seed_fn(seed: int, randomize_seed: bool) -> int:
+        if randomize_seed:
+            seed = random.randint(0, MAX_SEED)
+        return seed
+    
+    def remove_tips():
+        return gr.update(visible=False)
+
+    def get_example():
+        case = [
+            [
+                './examples/yann-lecun_resize.jpg',
+                "a man",
+                "Snow",
+                "(lowres, low quality, worst quality:1.2), (text:1.2), watermark, (frame:1.2), deformed, ugly, deformed eyes, blur, out of focus, blurry, deformed cat, deformed, photo, anthropomorphic cat, monochrome, photo, pet collar, gun, weapon, blue, 3d, drones, drone, buildings in background, green",
+            ],
+            [
+                './examples/musk_resize.jpeg',
+                "a man",
+                "Mars",
+                "(lowres, low quality, worst quality:1.2), (text:1.2), watermark, (frame:1.2), deformed, ugly, deformed eyes, blur, out of focus, blurry, deformed cat, deformed, photo, anthropomorphic cat, monochrome, photo, pet collar, gun, weapon, blue, 3d, drones, drone, buildings in background, green",
+            ],
+            [
+                './examples/sam_resize.png',
+                "a man",
+                "Jungle",
+                "(lowres, low quality, worst quality:1.2), (text:1.2), watermark, (frame:1.2), deformed, ugly, deformed eyes, blur, out of focus, blurry, deformed cat, deformed, photo, anthropomorphic cat, monochrome, photo, pet collar, gun, weapon, blue, 3d, drones, drone, buildings in background, gree",
+            ],
+            [
+                './examples/schmidhuber_resize.png',
+                "a man",
+                "Neon",
+                "(lowres, low quality, worst quality:1.2), (text:1.2), watermark, (frame:1.2), deformed, ugly, deformed eyes, blur, out of focus, blurry, deformed cat, deformed, photo, anthropomorphic cat, monochrome, photo, pet collar, gun, weapon, blue, 3d, drones, drone, buildings in background, green",
+            ],
+            [
+                './examples/kaifu_resize.png',
+                "a man",
+                "Vibrant Color",
+                "(lowres, low quality, worst quality:1.2), (text:1.2), watermark, (frame:1.2), deformed, ugly, deformed eyes, blur, out of focus, blurry, deformed cat, deformed, photo, anthropomorphic cat, monochrome, photo, pet collar, gun, weapon, blue, 3d, drones, drone, buildings in background, green",
+            ],
+        ]
+        return case
+
+    def run_for_examples(face_file, prompt, style, negative_prompt):
+        return generate_image(face_file, None, prompt, negative_prompt, style, 30, 0.8, 0.8, 5, 42, False, True)
+
+    def convert_from_cv2_to_image(img: np.ndarray) -> Image:
+        return Image.fromarray(cv2.cvtColor(img, cv2.COLOR_BGR2RGB))
+
+    def convert_from_image_to_cv2(img: Image) -> np.ndarray:
+        return cv2.cvtColor(np.array(img), cv2.COLOR_RGB2BGR)
+
+    def draw_kps(image_pil, kps, color_list=[(255,0,0), (0,255,0), (0,0,255), (255,255,0), (255,0,255)]):
+        stickwidth = 4
+        limbSeq = np.array([[0, 2], [1, 2], [3, 2], [4, 2]])
+        kps = np.array(kps)
+
+        w, h = image_pil.size
+        out_img = np.zeros([h, w, 3])
+
+        for i in range(len(limbSeq)):
+            index = limbSeq[i]
+            color = color_list[index[0]]
+
+            x = kps[index][:, 0]
+            y = kps[index][:, 1]
+            length = ((x[0] - x[1]) ** 2 + (y[0] - y[1]) ** 2) ** 0.5
+            angle = math.degrees(math.atan2(y[0] - y[1], x[0] - x[1]))
+            polygon = cv2.ellipse2Poly((int(np.mean(x)), int(np.mean(y))), (int(length / 2), stickwidth), int(angle), 0, 360, 1)
+            out_img = cv2.fillConvexPoly(out_img.copy(), polygon, color)
+        out_img = (out_img * 0.6).astype(np.uint8)
+
+        for idx_kp, kp in enumerate(kps):
+            color = color_list[idx_kp]
+            x, y = kp
+            out_img = cv2.circle(out_img.copy(), (int(x), int(y)), 10, color, -1)
+
+        out_img_pil = Image.fromarray(out_img.astype(np.uint8))
+        return out_img_pil
+
+    def resize_img(input_image, max_side=1280, min_side=1024, size=None, 
+                pad_to_max_side=False, mode=PIL.Image.BILINEAR, base_pixel_number=64):
+
+            w, h = input_image.size
+            if size is not None:
+                w_resize_new, h_resize_new = size
+            else:
+                ratio = min_side / min(h, w)
+                w, h = round(ratio*w), round(ratio*h)
+                ratio = max_side / max(h, w)
+                input_image = input_image.resize([round(ratio*w), round(ratio*h)], mode)
+                w_resize_new = (round(ratio * w) // base_pixel_number) * base_pixel_number
+                h_resize_new = (round(ratio * h) // base_pixel_number) * base_pixel_number
+            input_image = input_image.resize([w_resize_new, h_resize_new], mode)
+
+            if pad_to_max_side:
+                res = np.ones([max_side, max_side, 3], dtype=np.uint8) * 255
+                offset_x = (max_side - w_resize_new) // 2
+                offset_y = (max_side - h_resize_new) // 2
+                res[offset_y:offset_y+h_resize_new, offset_x:offset_x+w_resize_new] = np.array(input_image)
+                input_image = Image.fromarray(res)
+            return input_image
+
+    def apply_style(style_name: str, positive: str, negative: str = "") -> Tuple[str, str]:
+        p, n = styles.get(style_name, styles[DEFAULT_STYLE_NAME])
+        return p.replace("{prompt}", positive), n + ' ' + negative
+
+    def generate_image(face_image_path, pose_image_path, prompt, negative_prompt, style_name, num_steps, identitynet_strength_ratio, adapter_strength_ratio, guidance_scale, seed, enable_LCM, enhance_face_region, progress=gr.Progress(track_tqdm=True)):
+        if enable_LCM:
+            pipe.enable_lora()
+            pipe.scheduler = LCMScheduler.from_config(pipe.scheduler.config)
+        else:
+            pipe.disable_lora()
+            pipe.scheduler = diffusers.EulerDiscreteScheduler.from_config(pipe.scheduler.config)
+    
+        if face_image_path is None:
+            raise gr.Error(f"Cannot find any input face image! Please upload the face image")
+        
+        if prompt is None:
+            prompt = "a person"
+        
+        # apply the style template
+        prompt, negative_prompt = apply_style(style_name, prompt, negative_prompt)
+        
+        face_image = load_image(face_image_path)
+        face_image = resize_img(face_image)
+        face_image_cv2 = convert_from_image_to_cv2(face_image)
+        height, width, _ = face_image_cv2.shape
+        
+        # Extract face features
+        face_info = app.get(face_image_cv2)
+        
+        if len(face_info) == 0:
+            raise gr.Error(f"Cannot find any face in the image! Please upload another person image")
+        
+        face_info = sorted(face_info, key=lambda x:(x['bbox'][2]-x['bbox'][0])*(x['bbox'][3]-x['bbox'][1]))[-1]  # only use the maximum face
+        face_emb = face_info['embedding']
+        face_kps = draw_kps(convert_from_cv2_to_image(face_image_cv2), face_info['kps'])
+        
+        if pose_image_path is not None:
+            pose_image = load_image(pose_image_path)
+            pose_image = resize_img(pose_image)
+            pose_image_cv2 = convert_from_image_to_cv2(pose_image)
+            
+            face_info = app.get(pose_image_cv2)
+            
+            if len(face_info) == 0:
+                raise gr.Error(f"Cannot find any face in the reference image! Please upload another person image")
+            
+            face_info = face_info[-1]
+            face_kps = draw_kps(pose_image, face_info['kps'])
+            
+            width, height = face_kps.size
+
+        if enhance_face_region:
+            control_mask = np.zeros([height, width, 3])
+            x1, y1, x2, y2 = face_info["bbox"]
+            x1, y1, x2, y2 = int(x1), int(y1), int(x2), int(y2)
+            control_mask[y1:y2, x1:x2] = 255
+            control_mask = Image.fromarray(control_mask.astype(np.uint8))
+        else:
+            control_mask = None
+                        
+        generator = torch.Generator(device=device).manual_seed(seed)
+        
+        print("Start inference...")
+        print(f"[Debug] Prompt: {prompt}, \n[Debug] Neg Prompt: {negative_prompt}")
+        
+        pipe.set_ip_adapter_scale(adapter_strength_ratio)
+        images = pipe(
+            prompt=prompt,
+            negative_prompt=negative_prompt,
+            image_embeds=face_emb,
+            image=face_kps,
+            control_mask=control_mask,
+            controlnet_conditioning_scale=float(identitynet_strength_ratio),
+            num_inference_steps=num_steps,
+            guidance_scale=guidance_scale,
+            height=height,
+            width=width,
+            generator=generator
+        ).images
+
+        return images[0], gr.update(visible=True)
+
+    ### Description
+    title = r"""
+    <h1 align="center">InstantID: Zero-shot Identity-Preserving Generation in Seconds</h1>
+    """
+
+    description = r"""
+    <b>Official 🤗 Gradio demo</b> for <a href='https://github.com/InstantID/InstantID' target='_blank'><b>InstantID: Zero-shot Identity-Preserving Generation in Seconds</b></a>.<br>
+
+    How to use:<br>
+    1. Upload an image with a face. For images with multiple faces, we will only detect the largest face. Ensure the face is not too small and is clearly visible without significant obstructions or blurring.
+    2. (Optional) You can upload another image as a reference for the face pose. If you don't, we will use the first detected face image to extract facial landmarks. If you use a cropped face at step 1, it is recommended to upload it to define a new face pose.
+    3. Enter a text prompt, as done in normal text-to-image models.
+    4. Click the <b>Submit</b> button to begin customization.
+    5. Share your customized photo with your friends and enjoy! 😊
+    """
+
+    article = r"""
+    ---
+    📝 **Citation**
+    <br>
+    If our work is helpful for your research or applications, please cite us via:
+    ```bibtex
+    @article{wang2024instantid,
+    title={InstantID: Zero-shot Identity-Preserving Generation in Seconds},
+    author={Wang, Qixun and Bai, Xu and Wang, Haofan and Qin, Zekui and Chen, Anthony},
+    journal={arXiv preprint arXiv:2401.07519},
+    year={2024}
+    }
+    ```
+    📧 **Contact**
+    <br>
+    If you have any questions, please feel free to open an issue or directly reach us out at <b>haofanwang.ai@gmail.com</b>.
+    """
+
+    tips = r"""
+    ### Usage tips of InstantID
+    1. If you're not satisfied with the similarity, try increasing the weight of "IdentityNet Strength" and "Adapter Strength."    
+    2. If you feel that the saturation is too high, first decrease the Adapter strength. If it remains too high, then decrease the IdentityNet strength.
+    3. If you find that text control is not as expected, decrease Adapter strength.
+    4. If you find that realistic style is not good enough, go for our Github repo and use a more realistic base model.
+    """
+
+    css = '''
+    .gradio-container {width: 85% !important}
+    '''
+    with gr.Blocks(css=css) as demo:
+
+        # description
+        gr.Markdown(title)
+        gr.Markdown(description)
+
+        with gr.Row():
+            with gr.Column():
+                
+                # upload face image
+                face_file = gr.Image(label="Upload a photo of your face", type="filepath")
+
+                # optional: upload a reference pose image
+                pose_file = gr.Image(label="Upload a reference pose image (optional)", type="filepath")
+           
+                # prompt
+                prompt = gr.Textbox(label="Prompt",
+                        info="Give simple prompt is enough to achieve good face fidelity",
+                        placeholder="A photo of a person",
+                        value="")
+                
+                submit = gr.Button("Submit", variant="primary")
+                
+                enable_LCM = gr.Checkbox(
+                    label="Enable Fast Inference with LCM", value=enable_lcm_arg,
+                    info="LCM speeds up the inference step, the trade-off is the quality of the generated image. It performs better with portrait face images rather than distant faces",
+                )
+                style = gr.Dropdown(label="Style template", choices=STYLE_NAMES, value=DEFAULT_STYLE_NAME)
+                
+                # strength
+                identitynet_strength_ratio = gr.Slider(
+                    label="IdentityNet strength (for fidelity)",
+                    minimum=0,
+                    maximum=1.5,
+                    step=0.05,
+                    value=0.80,
+                )
+                adapter_strength_ratio = gr.Slider(
+                    label="Image adapter strength (for detail)",
+                    minimum=0,
+                    maximum=1.5,
+                    step=0.05,
+                    value=0.80,
+                )
+                
+                with gr.Accordion(open=False, label="Advanced Options"):
+                    negative_prompt = gr.Textbox(
+                        label="Negative Prompt", 
+                        placeholder="low quality",
+                        value="(lowres, low quality, worst quality:1.2), (text:1.2), watermark, (frame:1.2), deformed, ugly, deformed eyes, blur, out of focus, blurry, deformed cat, deformed, photo, anthropomorphic cat, monochrome, pet collar, gun, weapon, blue, 3d, drones, drone, buildings in background, green",
+                    )
+                    num_steps = gr.Slider( 
+                        label="Number of sample steps",
+                        minimum=20,
+                        maximum=100,
+                        step=1,
+                        value=5 if enable_lcm_arg else 30,
+                    )
+                    guidance_scale = gr.Slider(
+                        label="Guidance scale",
+                        minimum=0.1,
+                        maximum=10.0,
+                        step=0.1,
+                        value=0 if enable_lcm_arg else 5,
+                    )
+                    seed = gr.Slider(
+                        label="Seed",
+                        minimum=0,
+                        maximum=MAX_SEED,
+                        step=1,
+                        value=42,
+                    )
+                    randomize_seed = gr.Checkbox(label="Randomize seed", value=True)
+                    enhance_face_region = gr.Checkbox(label="Enhance non-face region", value=True)
+
+            with gr.Column():
+                gallery = gr.Image(label="Generated Images")
+                usage_tips = gr.Markdown(label="Usage tips of InstantID", value=tips ,visible=False)
+
+            submit.click(
+                fn=remove_tips,
+                outputs=usage_tips,            
+            ).then(
+                fn=randomize_seed_fn,
+                inputs=[seed, randomize_seed],
+                outputs=seed,
+                queue=False,
+                api_name=False,
+            ).then(
+                fn=generate_image,
+                inputs=[face_file, pose_file, prompt, negative_prompt, style, num_steps, identitynet_strength_ratio, adapter_strength_ratio, guidance_scale, seed, enable_LCM, enhance_face_region],
+                outputs=[gallery, usage_tips]
+            )
+        
+            enable_LCM.input(fn=toggle_lcm_ui, inputs=[enable_LCM], outputs=[num_steps, guidance_scale], queue=False)
+
+        gr.Examples(
+            examples=get_example(),
+            inputs=[face_file, prompt, style, negative_prompt],
+            run_on_click=True,
+            fn=run_for_examples,
+            outputs=[gallery, usage_tips],
+            cache_examples=True,
+        )
+        
+        gr.Markdown(article)
+
+    demo.launch()
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--pretrained_model_name_or_path", type=str, default="wangqixun/YamerMIX_v8")
+    parser.add_argument("--enable_LCM", type=bool, default=os.environ.get("ENABLE_LCM", False))
+
+    args = parser.parse_args()
+
+    main(args.pretrained_model_name_or_path, args.enable_LCM)
\ No newline at end of file

InstantID/gradio_demo/controlnet_util.py

+import torch
+import numpy as np
+from PIL import Image
+from controlnet_aux import OpenposeDetector
+from model_util import get_torch_device
+import cv2
+
+
+from transformers import DPTImageProcessor, DPTForDepthEstimation
+
+device = get_torch_device()
+depth_estimator = DPTForDepthEstimation.from_pretrained("Intel/dpt-hybrid-midas").to(device)
+feature_extractor = DPTImageProcessor.from_pretrained("Intel/dpt-hybrid-midas")
+openpose = OpenposeDetector.from_pretrained("lllyasviel/ControlNet")
+
+def get_depth_map(image):
+    image = feature_extractor(images=image, return_tensors="pt").pixel_values.to("cuda")
+    with torch.no_grad(), torch.autocast("cuda"):
+        depth_map = depth_estimator(image).predicted_depth
+
+    depth_map = torch.nn.functional.interpolate(
+        depth_map.unsqueeze(1),
+        size=(1024, 1024),
+        mode="bicubic",
+        align_corners=False,
+    )
+    depth_min = torch.amin(depth_map, dim=[1, 2, 3], keepdim=True)
+    depth_max = torch.amax(depth_map, dim=[1, 2, 3], keepdim=True)
+    depth_map = (depth_map - depth_min) / (depth_max - depth_min)
+    image = torch.cat([depth_map] * 3, dim=1)
+
+    image = image.permute(0, 2, 3, 1).cpu().numpy()[0]
+    image = Image.fromarray((image * 255.0).clip(0, 255).astype(np.uint8))
+    return image
+
+def get_canny_image(image, t1=100, t2=200):
+    image = cv2.cvtColor(np.array(image), cv2.COLOR_RGB2BGR)
+    edges = cv2.Canny(image, t1, t2)
+    return Image.fromarray(edges, "L")
\ No newline at end of file

InstantID/gradio_demo/download_models.py

+from huggingface_hub import hf_hub_download
+import gdown
+import os
+
+# download models
+hf_hub_download(
+    repo_id="InstantX/InstantID",
+    filename="ControlNetModel/config.json",
+    local_dir="./checkpoints",
+)
+hf_hub_download(
+    repo_id="InstantX/InstantID",
+    filename="ControlNetModel/diffusion_pytorch_model.safetensors",
+    local_dir="./checkpoints",
+)
+hf_hub_download(
+    repo_id="InstantX/InstantID", filename="ip-adapter.bin", local_dir="./checkpoints"
+)
+hf_hub_download(
+    repo_id="latent-consistency/lcm-lora-sdxl",
+    filename="pytorch_lora_weights.safetensors",
+    local_dir="./checkpoints",
+)
+# download antelopev2
+gdown.download(url="https://drive.google.com/file/d/18wEUfMNohBJ4K3Ly5wpTejPfDzp-8fI8/view?usp=sharing", output="./models/", quiet=False, fuzzy=True)
+# unzip antelopev2.zip
+os.system("unzip ./models/antelopev2.zip -d ./models/")
\ No newline at end of file

InstantID/gradio_demo/model_util.py

+from typing import Literal, Union, Optional, Tuple, List
+
+import torch
+from transformers import CLIPTextModel, CLIPTokenizer, CLIPTextModelWithProjection
+from diffusers import (
+    UNet2DConditionModel,
+    SchedulerMixin,
+    StableDiffusionPipeline,
+    StableDiffusionXLPipeline,
+    AutoencoderKL,
+)
+from diffusers.pipelines.stable_diffusion.convert_from_ckpt import (
+    convert_ldm_unet_checkpoint,
+)
+from safetensors.torch import load_file
+from diffusers.schedulers import (
+    DDIMScheduler,
+    DDPMScheduler,
+    LMSDiscreteScheduler,
+    EulerDiscreteScheduler,
+    EulerAncestralDiscreteScheduler,
+    UniPCMultistepScheduler,
+)
+
+from omegaconf import OmegaConf
+
+# DiffUsers版StableDiffusionのモデルパラメータ
+NUM_TRAIN_TIMESTEPS = 1000
+BETA_START = 0.00085
+BETA_END = 0.0120
+
+UNET_PARAMS_MODEL_CHANNELS = 320
+UNET_PARAMS_CHANNEL_MULT = [1, 2, 4, 4]
+UNET_PARAMS_ATTENTION_RESOLUTIONS = [4, 2, 1]
+UNET_PARAMS_IMAGE_SIZE = 64  # fixed from old invalid value `32`
+UNET_PARAMS_IN_CHANNELS = 4
+UNET_PARAMS_OUT_CHANNELS = 4
+UNET_PARAMS_NUM_RES_BLOCKS = 2
+UNET_PARAMS_CONTEXT_DIM = 768
+UNET_PARAMS_NUM_HEADS = 8
+# UNET_PARAMS_USE_LINEAR_PROJECTION = False
+
+VAE_PARAMS_Z_CHANNELS = 4
+VAE_PARAMS_RESOLUTION = 256
+VAE_PARAMS_IN_CHANNELS = 3
+VAE_PARAMS_OUT_CH = 3
+VAE_PARAMS_CH = 128
+VAE_PARAMS_CH_MULT = [1, 2, 4, 4]
+VAE_PARAMS_NUM_RES_BLOCKS = 2
+
+# V2
+V2_UNET_PARAMS_ATTENTION_HEAD_DIM = [5, 10, 20, 20]
+V2_UNET_PARAMS_CONTEXT_DIM = 1024
+# V2_UNET_PARAMS_USE_LINEAR_PROJECTION = True
+
+TOKENIZER_V1_MODEL_NAME = "CompVis/stable-diffusion-v1-4"
+TOKENIZER_V2_MODEL_NAME = "stabilityai/stable-diffusion-2-1"
+
+AVAILABLE_SCHEDULERS = Literal["ddim", "ddpm", "lms", "euler_a", "euler", "uniPC"]
+
+SDXL_TEXT_ENCODER_TYPE = Union[CLIPTextModel, CLIPTextModelWithProjection]
+
+DIFFUSERS_CACHE_DIR = None  # if you want to change the cache dir, change this
+
+
+def load_checkpoint_with_text_encoder_conversion(ckpt_path: str, device="cpu"):
+    # text encoderの格納形式が違うモデルに対応する ('text_model'がない)
+    TEXT_ENCODER_KEY_REPLACEMENTS = [
+        (
+            "cond_stage_model.transformer.embeddings.",
+            "cond_stage_model.transformer.text_model.embeddings.",
+        ),
+        (
+            "cond_stage_model.transformer.encoder.",
+            "cond_stage_model.transformer.text_model.encoder.",
+        ),
+        (
+            "cond_stage_model.transformer.final_layer_norm.",
+            "cond_stage_model.transformer.text_model.final_layer_norm.",
+        ),
+    ]
+
+    if ckpt_path.endswith(".safetensors"):
+        checkpoint = None
+        state_dict = load_file(ckpt_path)  # , device) # may causes error
+    else:
+        checkpoint = torch.load(ckpt_path, map_location=device)
+        if "state_dict" in checkpoint:
+            state_dict = checkpoint["state_dict"]
+        else:
+            state_dict = checkpoint
+            checkpoint = None
+
+    key_reps = []
+    for rep_from, rep_to in TEXT_ENCODER_KEY_REPLACEMENTS:
+        for key in state_dict.keys():
+            if key.startswith(rep_from):
+                new_key = rep_to + key[len(rep_from) :]
+                key_reps.append((key, new_key))
+
+    for key, new_key in key_reps:
+        state_dict[new_key] = state_dict[key]
+        del state_dict[key]
+
+    return checkpoint, state_dict
+
+
+def create_unet_diffusers_config(v2, use_linear_projection_in_v2=False):
+    """
+    Creates a config for the diffusers based on the config of the LDM model.
+    """
+    # unet_params = original_config.model.params.unet_config.params
+
+    block_out_channels = [
+        UNET_PARAMS_MODEL_CHANNELS * mult for mult in UNET_PARAMS_CHANNEL_MULT
+    ]
+
+    down_block_types = []
+    resolution = 1
+    for i in range(len(block_out_channels)):
+        block_type = (
+            "CrossAttnDownBlock2D"
+            if resolution in UNET_PARAMS_ATTENTION_RESOLUTIONS
+            else "DownBlock2D"
+        )
+        down_block_types.append(block_type)
+        if i != len(block_out_channels) - 1:
+            resolution *= 2
+
+    up_block_types = []
+    for i in range(len(block_out_channels)):
+        block_type = (
+            "CrossAttnUpBlock2D"
+            if resolution in UNET_PARAMS_ATTENTION_RESOLUTIONS
+            else "UpBlock2D"
+        )
+        up_block_types.append(block_type)
+        resolution //= 2
+
+    config = dict(
+        sample_size=UNET_PARAMS_IMAGE_SIZE,
+        in_channels=UNET_PARAMS_IN_CHANNELS,
+        out_channels=UNET_PARAMS_OUT_CHANNELS,
+        down_block_types=tuple(down_block_types),
+        up_block_types=tuple(up_block_types),
+        block_out_channels=tuple(block_out_channels),
+        layers_per_block=UNET_PARAMS_NUM_RES_BLOCKS,
+        cross_attention_dim=UNET_PARAMS_CONTEXT_DIM
+        if not v2
+        else V2_UNET_PARAMS_CONTEXT_DIM,
+        attention_head_dim=UNET_PARAMS_NUM_HEADS
+        if not v2
+        else V2_UNET_PARAMS_ATTENTION_HEAD_DIM,
+        # use_linear_projection=UNET_PARAMS_USE_LINEAR_PROJECTION if not v2 else V2_UNET_PARAMS_USE_LINEAR_PROJECTION,
+    )
+    if v2 and use_linear_projection_in_v2:
+        config["use_linear_projection"] = True
+
+    return config
+
+
+def load_diffusers_model(
+    pretrained_model_name_or_path: str,
+    v2: bool = False,
+    clip_skip: Optional[int] = None,
+    weight_dtype: torch.dtype = torch.float32,
+) -> Tuple[CLIPTokenizer, CLIPTextModel, UNet2DConditionModel,]:
+    if v2:
+        tokenizer = CLIPTokenizer.from_pretrained(
+            TOKENIZER_V2_MODEL_NAME,
+            subfolder="tokenizer",
+            torch_dtype=weight_dtype,
+            cache_dir=DIFFUSERS_CACHE_DIR,
+        )
+        text_encoder = CLIPTextModel.from_pretrained(
+            pretrained_model_name_or_path,
+            subfolder="text_encoder",
+            # default is clip skip 2
+            num_hidden_layers=24 - (clip_skip - 1) if clip_skip is not None else 23,
+            torch_dtype=weight_dtype,
+            cache_dir=DIFFUSERS_CACHE_DIR,
+        )
+    else:
+        tokenizer = CLIPTokenizer.from_pretrained(
+            TOKENIZER_V1_MODEL_NAME,
+            subfolder="tokenizer",
+            torch_dtype=weight_dtype,
+            cache_dir=DIFFUSERS_CACHE_DIR,
+        )
+        text_encoder = CLIPTextModel.from_pretrained(
+            pretrained_model_name_or_path,
+            subfolder="text_encoder",
+            num_hidden_layers=12 - (clip_skip - 1) if clip_skip is not None else 12,
+            torch_dtype=weight_dtype,
+            cache_dir=DIFFUSERS_CACHE_DIR,
+        )
+
+    unet = UNet2DConditionModel.from_pretrained(
+        pretrained_model_name_or_path,
+        subfolder="unet",
+        torch_dtype=weight_dtype,
+        cache_dir=DIFFUSERS_CACHE_DIR,
+    )
+
+    vae = AutoencoderKL.from_pretrained(pretrained_model_name_or_path, subfolder="vae")
+
+    return tokenizer, text_encoder, unet, vae
+
+
+def load_checkpoint_model(
+    checkpoint_path: str,
+    v2: bool = False,
+    clip_skip: Optional[int] = None,
+    weight_dtype: torch.dtype = torch.float32,
+) -> Tuple[CLIPTokenizer, CLIPTextModel, UNet2DConditionModel,]:
+    pipe = StableDiffusionPipeline.from_single_file(
+        checkpoint_path,
+        upcast_attention=True if v2 else False,
+        torch_dtype=weight_dtype,
+        cache_dir=DIFFUSERS_CACHE_DIR,
+    )
+
+    _, state_dict = load_checkpoint_with_text_encoder_conversion(checkpoint_path)
+    unet_config = create_unet_diffusers_config(v2, use_linear_projection_in_v2=v2)
+    unet_config["class_embed_type"] = None
+    unet_config["addition_embed_type"] = None
+    converted_unet_checkpoint = convert_ldm_unet_checkpoint(state_dict, unet_config)
+    unet = UNet2DConditionModel(**unet_config)
+    unet.load_state_dict(converted_unet_checkpoint)
+
+    tokenizer = pipe.tokenizer
+    text_encoder = pipe.text_encoder
+    vae = pipe.vae
+    if clip_skip is not None:
+        if v2:
+            text_encoder.config.num_hidden_layers = 24 - (clip_skip - 1)
+        else:
+            text_encoder.config.num_hidden_layers = 12 - (clip_skip - 1)
+
+    del pipe
+
+    return tokenizer, text_encoder, unet, vae
+
+
+def load_models(
+    pretrained_model_name_or_path: str,
+    scheduler_name: str,
+    v2: bool = False,
+    v_pred: bool = False,
+    weight_dtype: torch.dtype = torch.float32,
+) -> Tuple[CLIPTokenizer, CLIPTextModel, UNet2DConditionModel, SchedulerMixin,]:
+    if pretrained_model_name_or_path.endswith(
+        ".ckpt"
+    ) or pretrained_model_name_or_path.endswith(".safetensors"):
+        tokenizer, text_encoder, unet, vae = load_checkpoint_model(
+            pretrained_model_name_or_path, v2=v2, weight_dtype=weight_dtype
+        )
+    else:  # diffusers
+        tokenizer, text_encoder, unet, vae = load_diffusers_model(
+            pretrained_model_name_or_path, v2=v2, weight_dtype=weight_dtype
+        )
+
+    if scheduler_name:
+        scheduler = create_noise_scheduler(
+            scheduler_name,
+            prediction_type="v_prediction" if v_pred else "epsilon",
+        )
+    else:
+        scheduler = None
+
+    return tokenizer, text_encoder, unet, scheduler, vae
+
+
+def load_diffusers_model_xl(
+    pretrained_model_name_or_path: str,
+    weight_dtype: torch.dtype = torch.float32,
+) -> Tuple[List[CLIPTokenizer], List[SDXL_TEXT_ENCODER_TYPE], UNet2DConditionModel,]:
+    # returns tokenizer, tokenizer_2, text_encoder, text_encoder_2, unet
+
+    tokenizers = [
+        CLIPTokenizer.from_pretrained(
+            pretrained_model_name_or_path,
+            subfolder="tokenizer",
+            torch_dtype=weight_dtype,
+            cache_dir=DIFFUSERS_CACHE_DIR,
+        ),
+        CLIPTokenizer.from_pretrained(
+            pretrained_model_name_or_path,
+            subfolder="tokenizer_2",
+            torch_dtype=weight_dtype,
+            cache_dir=DIFFUSERS_CACHE_DIR,
+            pad_token_id=0,  # same as open clip
+        ),
+    ]
+
+    text_encoders = [
+        CLIPTextModel.from_pretrained(
+            pretrained_model_name_or_path,
+            subfolder="text_encoder",
+            torch_dtype=weight_dtype,
+            cache_dir=DIFFUSERS_CACHE_DIR,
+        ),
+        CLIPTextModelWithProjection.from_pretrained(
+            pretrained_model_name_or_path,
+            subfolder="text_encoder_2",
+            torch_dtype=weight_dtype,
+            cache_dir=DIFFUSERS_CACHE_DIR,
+        ),
+    ]
+
+    unet = UNet2DConditionModel.from_pretrained(
+        pretrained_model_name_or_path,
+        subfolder="unet",
+        torch_dtype=weight_dtype,
+        cache_dir=DIFFUSERS_CACHE_DIR,
+    )
+    vae = AutoencoderKL.from_pretrained(pretrained_model_name_or_path, subfolder="vae")
+    return tokenizers, text_encoders, unet, vae
+
+
+def load_checkpoint_model_xl(
+    checkpoint_path: str,
+    weight_dtype: torch.dtype = torch.float32,
+) -> Tuple[List[CLIPTokenizer], List[SDXL_TEXT_ENCODER_TYPE], UNet2DConditionModel,]:
+    pipe = StableDiffusionXLPipeline.from_single_file(
+        checkpoint_path,
+        torch_dtype=weight_dtype,
+        cache_dir=DIFFUSERS_CACHE_DIR,
+    )
+
+    unet = pipe.unet
+    vae = pipe.vae
+    tokenizers = [pipe.tokenizer, pipe.tokenizer_2]
+    text_encoders = [pipe.text_encoder, pipe.text_encoder_2]
+    if len(text_encoders) == 2:
+        text_encoders[1].pad_token_id = 0
+
+    del pipe
+
+    return tokenizers, text_encoders, unet, vae
+
+
+def load_models_xl(
+    pretrained_model_name_or_path: str,
+    scheduler_name: str,
+    weight_dtype: torch.dtype = torch.float32,
+    noise_scheduler_kwargs=None,
+) -> Tuple[
+    List[CLIPTokenizer],
+    List[SDXL_TEXT_ENCODER_TYPE],
+    UNet2DConditionModel,
+    SchedulerMixin,
+]:
+    if pretrained_model_name_or_path.endswith(
+        ".ckpt"
+    ) or pretrained_model_name_or_path.endswith(".safetensors"):
+        (tokenizers, text_encoders, unet, vae) = load_checkpoint_model_xl(
+            pretrained_model_name_or_path, weight_dtype
+        )
+    else:  # diffusers
+        (tokenizers, text_encoders, unet, vae) = load_diffusers_model_xl(
+            pretrained_model_name_or_path, weight_dtype
+        )
+    if scheduler_name:
+        scheduler = create_noise_scheduler(scheduler_name, noise_scheduler_kwargs)
+    else:
+        scheduler = None
+
+    return tokenizers, text_encoders, unet, scheduler, vae
+
+def create_noise_scheduler(
+    scheduler_name: AVAILABLE_SCHEDULERS = "ddpm",
+    noise_scheduler_kwargs=None,
+    prediction_type: Literal["epsilon", "v_prediction"] = "epsilon",
+) -> SchedulerMixin:
+    name = scheduler_name.lower().replace(" ", "_")
+    if name.lower() == "ddim":
+        # https://huggingface.co/docs/diffusers/v0.17.1/en/api/schedulers/ddim
+        scheduler = DDIMScheduler(**OmegaConf.to_container(noise_scheduler_kwargs))
+    elif name.lower() == "ddpm":
+        # https://huggingface.co/docs/diffusers/v0.17.1/en/api/schedulers/ddpm
+        scheduler = DDPMScheduler(**OmegaConf.to_container(noise_scheduler_kwargs))
+    elif name.lower() == "lms":
+        # https://huggingface.co/docs/diffusers/v0.17.1/en/api/schedulers/lms_discrete
+        scheduler = LMSDiscreteScheduler(
+            **OmegaConf.to_container(noise_scheduler_kwargs)
+        )
+    elif name.lower() == "euler_a":
+        # https://huggingface.co/docs/diffusers/v0.17.1/en/api/schedulers/euler_ancestral
+        scheduler = EulerAncestralDiscreteScheduler(
+            **OmegaConf.to_container(noise_scheduler_kwargs)
+        )
+    elif name.lower() == "euler":
+        # https://huggingface.co/docs/diffusers/v0.17.1/en/api/schedulers/euler_ancestral
+        scheduler = EulerDiscreteScheduler(
+            **OmegaConf.to_container(noise_scheduler_kwargs)
+        )
+    elif name.lower() == "unipc":
+        # https://huggingface.co/docs/diffusers/v0.17.1/en/api/schedulers/unipc
+        scheduler = UniPCMultistepScheduler(
+            **OmegaConf.to_container(noise_scheduler_kwargs)
+        )
+    else:
+        raise ValueError(f"Unknown scheduler name: {name}")
+
+    return scheduler
+
+
+def torch_gc():
+    import gc
+
+    gc.collect()
+    if torch.cuda.is_available():
+        with torch.cuda.device("cuda"):
+            torch.cuda.empty_cache()
+            torch.cuda.ipc_collect()
+
+
+from enum import Enum
+
+
+class CPUState(Enum):
+    GPU = 0
+    CPU = 1
+    MPS = 2
+
+
+cpu_state = CPUState.GPU
+xpu_available = False
+directml_enabled = False
+
+
+def is_intel_xpu():
+    global cpu_state
+    global xpu_available
+    if cpu_state == CPUState.GPU:
+        if xpu_available:
+            return True
+    return False
+
+
+try:
+    import intel_extension_for_pytorch as ipex
+
+    if torch.xpu.is_available():
+        xpu_available = True
+except:
+    pass
+
+try:
+    if torch.backends.mps.is_available():
+        cpu_state = CPUState.MPS
+        import torch.mps
+except:
+    pass
+
+
+def get_torch_device():
+    global directml_enabled
+    global cpu_state
+    if directml_enabled:
+        global directml_device
+        return directml_device
+    if cpu_state == CPUState.MPS:
+        return torch.device("mps")
+    if cpu_state == CPUState.CPU:
+        return torch.device("cpu")
+    else:
+        if is_intel_xpu():
+            return torch.device("xpu")
+        else:
+            return torch.device(torch.cuda.current_device())

InstantID/gradio_demo/requirements.txt

+diffusers==0.25.1
+torch==2.0.0
+torchvision==0.15.1
+transformers==4.37.1
+accelerate
+safetensors
+einops
+onnxruntime-gpu
+spaces==0.19.4
+omegaconf
+peft
+huggingface-hub==0.20.2
+opencv-python
+insightface
+gradio
+controlnet_aux
+gdown
+peft
\ No newline at end of file

InstantID/gradio_demo/style_template.py

+style_list = [
+    {
+        "name": "(No style)",
+        "prompt": "{prompt}",
+        "negative_prompt": "",
+    },
+    {
+        "name": "Watercolor",
+        "prompt": "watercolor painting, {prompt}. vibrant, beautiful, painterly, detailed, textural, artistic",
+        "negative_prompt": "(lowres, low quality, worst quality:1.2), (text:1.2), watermark, anime, photorealistic, 35mm film, deformed, glitch, low contrast, noisy",
+    },
+    {
+        "name": "Film Noir",
+        "prompt": "film noir style, ink sketch|vector, {prompt} highly detailed, sharp focus, ultra sharpness, monochrome, high contrast, dramatic shadows, 1940s style, mysterious, cinematic",
+        "negative_prompt": "(lowres, low quality, worst quality:1.2), (text:1.2), watermark, (frame:1.2), deformed, ugly, deformed eyes, blur, out of focus, blurry, deformed cat, deformed, photo, anthropomorphic cat, monochrome, photo, pet collar, gun, weapon, blue, 3d, drones, drone, buildings in background, green",
+    },
+    {
+        "name": "Neon",
+        "prompt": "masterpiece painting, buildings in the backdrop, kaleidoscope, lilac orange blue cream fuchsia bright vivid gradient colors, the scene is cinematic, {prompt}, emotional realism, double exposure, watercolor ink pencil, graded wash, color layering, magic realism, figurative painting, intricate motifs, organic tracery, polished",
+        "negative_prompt": "(lowres, low quality, worst quality:1.2), (text:1.2), watermark, (frame:1.2), deformed, ugly, deformed eyes, blur, out of focus, blurry, deformed cat, deformed, photo, anthropomorphic cat, monochrome, photo, pet collar, gun, weapon, blue, 3d, drones, drone, buildings in background, green",
+    },
+    {
+        "name": "Jungle",
+        "prompt": 'waist-up "{prompt} in a Jungle" by Syd Mead, tangerine cold color palette, muted colors, detailed, 8k,photo r3al,dripping paint,3d toon style,3d style,Movie Still',
+        "negative_prompt": "(lowres, low quality, worst quality:1.2), (text:1.2), watermark, (frame:1.2), deformed, ugly, deformed eyes, blur, out of focus, blurry, deformed cat, deformed, photo, anthropomorphic cat, monochrome, photo, pet collar, gun, weapon, blue, 3d, drones, drone, buildings in background, green",
+    },
+    {
+        "name": "Mars",
+        "prompt": "{prompt}, Post-apocalyptic. Mars Colony, Scavengers roam the wastelands searching for valuable resources, rovers, bright morning sunlight shining, (detailed) (intricate) (8k) (HDR) (cinematic lighting) (sharp focus)",
+        "negative_prompt": "(lowres, low quality, worst quality:1.2), (text:1.2), watermark, (frame:1.2), deformed, ugly, deformed eyes, blur, out of focus, blurry, deformed cat, deformed, photo, anthropomorphic cat, monochrome, photo, pet collar, gun, weapon, blue, 3d, drones, drone, buildings in background, green",
+    },
+    {
+        "name": "Vibrant Color",
+        "prompt": "vibrant colorful, ink sketch|vector|2d colors, at nightfall, sharp focus, {prompt}, highly detailed, sharp focus, the clouds,colorful,ultra sharpness",
+        "negative_prompt": "(lowres, low quality, worst quality:1.2), (text:1.2), watermark, (frame:1.2), deformed, ugly, deformed eyes, blur, out of focus, blurry, deformed cat, deformed, photo, anthropomorphic cat, monochrome, photo, pet collar, gun, weapon, blue, 3d, drones, drone, buildings in background, green",
+    },
+    {
+        "name": "Snow",
+        "prompt": "cinema 4d render, {prompt}, high contrast, vibrant and saturated, sico style, surrounded by magical glow,floating ice shards, snow crystals, cold, windy background, frozen natural landscape in background  cinematic atmosphere,highly detailed, sharp focus, intricate design, 3d, unreal engine, octane render, CG best quality, highres, photorealistic, dramatic lighting, artstation, concept art, cinematic, epic Steven Spielberg movie still, sharp focus, smoke, sparks, art by pascal blanche and greg rutkowski and repin, trending on artstation, hyperrealism painting, matte painting, 4k resolution",
+        "negative_prompt": "(lowres, low quality, worst quality:1.2), (text:1.2), watermark, (frame:1.2), deformed, ugly, deformed eyes, blur, out of focus, blurry, deformed cat, deformed, photo, anthropomorphic cat, monochrome, photo, pet collar, gun, weapon, blue, 3d, drones, drone, buildings in background, green",
+    },
+    {
+        "name": "Line art",
+        "prompt": "line art drawing {prompt} . professional, sleek, modern, minimalist, graphic, line art, vector graphics",
+        "negative_prompt": "anime, photorealistic, 35mm film, deformed, glitch, blurry, noisy, off-center, deformed, cross-eyed, closed eyes, bad anatomy, ugly, disfigured, mutated, realism, realistic, impressionism, expressionism, oil, acrylic",
+    },
+]
+
+styles = {k["name"]: (k["prompt"], k["negative_prompt"]) for k in style_list}
\ No newline at end of file

InstantID/infer.py

+import cv2
+import torch
+import numpy as np
+from PIL import Image
+
+from diffusers.utils import load_image
+from diffusers.models import ControlNetModel
+
+from insightface.app import FaceAnalysis
+from pipeline_stable_diffusion_xl_instantid import StableDiffusionXLInstantIDPipeline, draw_kps
+
+def resize_img(input_image, max_side=1280, min_side=1024, size=None, 
+               pad_to_max_side=False, mode=Image.BILINEAR, base_pixel_number=64):
+
+    w, h = input_image.size
+    if size is not None:
+        w_resize_new, h_resize_new = size
+    else:
+        ratio = min_side / min(h, w)
+        w, h = round(ratio*w), round(ratio*h)
+        ratio = max_side / max(h, w)
+        input_image = input_image.resize([round(ratio*w), round(ratio*h)], mode)
+        w_resize_new = (round(ratio * w) // base_pixel_number) * base_pixel_number
+        h_resize_new = (round(ratio * h) // base_pixel_number) * base_pixel_number
+    input_image = input_image.resize([w_resize_new, h_resize_new], mode)
+
+    if pad_to_max_side:
+        res = np.ones([max_side, max_side, 3], dtype=np.uint8) * 255
+        offset_x = (max_side - w_resize_new) // 2
+        offset_y = (max_side - h_resize_new) // 2
+        res[offset_y:offset_y+h_resize_new, offset_x:offset_x+w_resize_new] = np.array(input_image)
+        input_image = Image.fromarray(res)
+    return input_image
+
+
+if __name__ == "__main__":
+
+    # Load face encoder
+    app = FaceAnalysis(name='antelopev2', root='./', providers=['CUDAExecutionProvider', 'CPUExecutionProvider'])
+    app.prepare(ctx_id=0, det_size=(640, 640))
+
+    # Path to InstantID models
+    face_adapter = f'./checkpoints/ip-adapter.bin'
+    controlnet_path = f'./checkpoints/ControlNetModel'
+
+    # Load pipeline
+    controlnet = ControlNetModel.from_pretrained(controlnet_path, torch_dtype=torch.float16)
+
+    base_model_path = 'stabilityai/stable-diffusion-xl-base-1.0'
+
+    pipe = StableDiffusionXLInstantIDPipeline.from_pretrained(
+        base_model_path,
+        controlnet=controlnet,
+        torch_dtype=torch.float16,
+    )
+    pipe.cuda()
+    pipe.load_ip_adapter_instantid(face_adapter)
+
+    # Infer setting
+    prompt = "analog film photo of a man. faded film, desaturated, 35mm photo, grainy, vignette, vintage, Kodachrome, Lomography, stained, highly detailed, found footage, masterpiece, best quality"
+    n_prompt = "(lowres, low quality, worst quality:1.2), (text:1.2), watermark, painting, drawing, illustration, glitch, deformed, mutated, cross-eyed, ugly, disfigured (lowres, low quality, worst quality:1.2), (text:1.2), watermark, painting, drawing, illustration, glitch,deformed, mutated, cross-eyed, ugly, disfigured"
+
+    face_image = load_image("./examples/yann-lecun_resize.jpg")
+    face_image = resize_img(face_image)
+
+    face_info = app.get(cv2.cvtColor(np.array(face_image), cv2.COLOR_RGB2BGR))
+    face_info = sorted(face_info, key=lambda x:(x['bbox'][2]-x['bbox'][0])*(x['bbox'][3]-x['bbox'][1]))[-1] # only use the maximum face
+    face_emb = face_info['embedding']
+    face_kps = draw_kps(face_image, face_info['kps'])
+
+    image = pipe(
+        prompt=prompt,
+        negative_prompt=n_prompt,
+        image_embeds=face_emb,
+        image=face_kps,
+        controlnet_conditioning_scale=0.8,
+        ip_adapter_scale=0.8,
+        num_inference_steps=30,
+        guidance_scale=5,
+    ).images[0]
+
+    image.save('result.jpg')
\ No newline at end of file

InstantID/infer_full.py

+import cv2
+import torch
+import numpy as np
+from PIL import Image
+
+from diffusers.utils import load_image
+from diffusers.models import ControlNetModel
+from diffusers.pipelines.controlnet.multicontrolnet import MultiControlNetModel
+
+from insightface.app import FaceAnalysis
+from pipeline_stable_diffusion_xl_instantid_full import StableDiffusionXLInstantIDPipeline, draw_kps
+
+from controlnet_aux import MidasDetector
+
+def convert_from_image_to_cv2(img: Image) -> np.ndarray:
+    return cv2.cvtColor(np.array(img), cv2.COLOR_RGB2BGR)
+
+def resize_img(input_image, max_side=1280, min_side=1024, size=None, 
+               pad_to_max_side=False, mode=Image.BILINEAR, base_pixel_number=64):
+
+    w, h = input_image.size
+    if size is not None:
+        w_resize_new, h_resize_new = size
+    else:
+        ratio = min_side / min(h, w)
+        w, h = round(ratio*w), round(ratio*h)
+        ratio = max_side / max(h, w)
+        input_image = input_image.resize([round(ratio*w), round(ratio*h)], mode)
+        w_resize_new = (round(ratio * w) // base_pixel_number) * base_pixel_number
+        h_resize_new = (round(ratio * h) // base_pixel_number) * base_pixel_number
+    input_image = input_image.resize([w_resize_new, h_resize_new], mode)
+
+    if pad_to_max_side:
+        res = np.ones([max_side, max_side, 3], dtype=np.uint8) * 255
+        offset_x = (max_side - w_resize_new) // 2
+        offset_y = (max_side - h_resize_new) // 2
+        res[offset_y:offset_y+h_resize_new, offset_x:offset_x+w_resize_new] = np.array(input_image)
+        input_image = Image.fromarray(res)
+    return input_image
+
+
+if __name__ == "__main__":
+
+    # Load face encoder
+    app = FaceAnalysis(name='antelopev2', root='./', providers=['CUDAExecutionProvider', 'CPUExecutionProvider'])
+    app.prepare(ctx_id=0, det_size=(640, 640))
+
+    # Path to InstantID models
+    face_adapter = f'./checkpoints/ip-adapter.bin'
+    controlnet_path = f'./checkpoints/ControlNetModel'
+    controlnet_depth_path = f'diffusers/controlnet-depth-sdxl-1.0-small'
+    
+    # Load depth detector
+    midas = MidasDetector.from_pretrained("lllyasviel/Annotators")
+
+    # Load pipeline
+    controlnet_list = [controlnet_path, controlnet_depth_path]
+    controlnet_model_list = []
+    for controlnet_path in controlnet_list:
+        controlnet = ControlNetModel.from_pretrained(controlnet_path, torch_dtype=torch.float16)
+        controlnet_model_list.append(controlnet)
+    controlnet = MultiControlNetModel(controlnet_model_list)
+    
+    base_model_path = 'stabilityai/stable-diffusion-xl-base-1.0'
+
+    pipe = StableDiffusionXLInstantIDPipeline.from_pretrained(
+        base_model_path,
+        controlnet=controlnet,
+        torch_dtype=torch.float16,
+    )
+    pipe.cuda()
+    pipe.load_ip_adapter_instantid(face_adapter)
+
+    # Infer setting
+    prompt = "analog film photo of a man. faded film, desaturated, 35mm photo, grainy, vignette, vintage, Kodachrome, Lomography, stained, highly detailed, found footage, masterpiece, best quality"
+    n_prompt = "(lowres, low quality, worst quality:1.2), (text:1.2), watermark, painting, drawing, illustration, glitch, deformed, mutated, cross-eyed, ugly, disfigured (lowres, low quality, worst quality:1.2), (text:1.2), watermark, painting, drawing, illustration, glitch,deformed, mutated, cross-eyed, ugly, disfigured"
+
+    face_image = load_image("./examples/yann-lecun_resize.jpg")
+    face_image = resize_img(face_image)
+
+    face_info = app.get(cv2.cvtColor(np.array(face_image), cv2.COLOR_RGB2BGR))
+    face_info = sorted(face_info, key=lambda x:(x['bbox'][2]-x['bbox'][0])*(x['bbox'][3]-x['bbox'][1]))[-1] # only use the maximum face
+    face_emb = face_info['embedding']
+
+    # use another reference image
+    pose_image = load_image("./examples/poses/pose.jpg")
+    pose_image = resize_img(pose_image)
+
+    face_info = app.get(cv2.cvtColor(np.array(pose_image), cv2.COLOR_RGB2BGR))
+    pose_image_cv2 = convert_from_image_to_cv2(pose_image)
+    face_info = sorted(face_info, key=lambda x:(x['bbox'][2]-x['bbox'][0])*(x['bbox'][3]-x['bbox'][1]))[-1] # only use the maximum face
+    face_kps = draw_kps(pose_image, face_info['kps'])
+
+    width, height = face_kps.size
+
+    # use depth control
+    processed_image_midas = midas(pose_image)
+    processed_image_midas = processed_image_midas.resize(pose_image.size)
+    
+    # enhance face region
+    control_mask = np.zeros([height, width, 3])
+    x1, y1, x2, y2 = face_info["bbox"]
+    x1, y1, x2, y2 = int(x1), int(y1), int(x2), int(y2)
+    control_mask[y1:y2, x1:x2] = 255
+    control_mask = Image.fromarray(control_mask.astype(np.uint8))
+
+    image = pipe(
+        prompt=prompt,
+        negative_prompt=n_prompt,
+        image_embeds=face_emb,
+        control_mask=control_mask,
+        image=[face_kps, processed_image_midas],
+        controlnet_conditioning_scale=[0.8,0.8],
+        ip_adapter_scale=0.8,
+        num_inference_steps=30,
+        guidance_scale=5,
+    ).images[0]
+
+    image.save('result.jpg')
\ No newline at end of file

InstantID/infer_img2img.py

+import cv2
+import torch
+import numpy as np
+from PIL import Image
+
+from diffusers.utils import load_image
+from diffusers.models import ControlNetModel
+
+from insightface.app import FaceAnalysis
+from pipeline_stable_diffusion_xl_instantid_img2img import StableDiffusionXLInstantIDImg2ImgPipeline, draw_kps
+
+def resize_img(input_image, max_side=1280, min_side=1024, size=None, 
+               pad_to_max_side=False, mode=Image.BILINEAR, base_pixel_number=64):
+
+    w, h = input_image.size
+    if size is not None:
+        w_resize_new, h_resize_new = size
+    else:
+        ratio = min_side / min(h, w)
+        w, h = round(ratio*w), round(ratio*h)
+        ratio = max_side / max(h, w)
+        input_image = input_image.resize([round(ratio*w), round(ratio*h)], mode)
+        w_resize_new = (round(ratio * w) // base_pixel_number) * base_pixel_number
+        h_resize_new = (round(ratio * h) // base_pixel_number) * base_pixel_number
+    input_image = input_image.resize([w_resize_new, h_resize_new], mode)
+
+    if pad_to_max_side:
+        res = np.ones([max_side, max_side, 3], dtype=np.uint8) * 255
+        offset_x = (max_side - w_resize_new) // 2
+        offset_y = (max_side - h_resize_new) // 2
+        res[offset_y:offset_y+h_resize_new, offset_x:offset_x+w_resize_new] = np.array(input_image)
+        input_image = Image.fromarray(res)
+    return input_image
+
+
+if __name__ == "__main__":
+    
+    # Load face encoder
+    app = FaceAnalysis(name='antelopev2', root='./', providers=['CUDAExecutionProvider', 'CPUExecutionProvider'])
+    app.prepare(ctx_id=0, det_size=(640, 640))
+
+    # Path to InstantID models
+    face_adapter = f'./checkpoints/ip-adapter.bin'
+    controlnet_path = f'./checkpoints/ControlNetModel'
+
+    # Load pipeline
+    controlnet = ControlNetModel.from_pretrained(controlnet_path, torch_dtype=torch.float16)
+
+    base_model_path = 'stabilityai/stable-diffusion-xl-base-1.0'
+
+    pipe = StableDiffusionXLInstantIDImg2ImgPipeline.from_pretrained(
+        base_model_path,
+        controlnet=controlnet,
+        torch_dtype=torch.float16,
+    )
+    pipe.cuda()
+    pipe.load_ip_adapter_instantid(face_adapter)
+
+    # Infer setting
+    prompt = "analog film photo of a man. faded film, desaturated, 35mm photo, grainy, vignette, vintage, Kodachrome, Lomography, stained, highly detailed, found footage, masterpiece, best quality"
+    n_prompt = "(lowres, low quality, worst quality:1.2), (text:1.2), watermark, painting, drawing, illustration, glitch, deformed, mutated, cross-eyed, ugly, disfigured (lowres, low quality, worst quality:1.2), (text:1.2), watermark, painting, drawing, illustration, glitch,deformed, mutated, cross-eyed, ugly, disfigured"
+
+    face_image = load_image("./examples/yann-lecun_resize.jpg")
+    face_image = resize_img(face_image)
+
+    face_info = app.get(cv2.cvtColor(np.array(face_image), cv2.COLOR_RGB2BGR))
+    face_info = sorted(face_info, key=lambda x:(x['bbox'][2]-x['bbox'][0])*(x['bbox'][3]-x['bbox'][1]))[-1] # only use the maximum face
+    face_emb = face_info['embedding']
+    face_kps = draw_kps(face_image, face_info['kps'])
+
+    image = pipe(
+        prompt=prompt,
+        negative_prompt=n_prompt,
+        image=face_image,
+        image_embeds=face_emb,
+        control_image=face_kps,
+        controlnet_conditioning_scale=0.8,
+        ip_adapter_scale=0.8,
+        num_inference_steps=30,
+        guidance_scale=5,
+        strength=0.85
+    ).images[0]
+
+    image.save('result.jpg')
\ No newline at end of file

InstantID/ip_adapter/attention_processor.py

+# modified from https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+
+try:
+    import xformers
+    import xformers.ops
+    xformers_available = True
+except Exception as e:
+    xformers_available = False
+
+class RegionControler(object):
+    def __init__(self) -> None:
+        self.prompt_image_conditioning = []
+region_control = RegionControler()
+
+class AttnProcessor(nn.Module):
+    r"""
+    Default processor for performing attention-related computations.
+    """
+    def __init__(
+        self,
+        hidden_size=None,
+        cross_attention_dim=None,
+    ):
+        super().__init__()
+
+    def forward(
+        self,
+        attn,
+        hidden_states,
+        encoder_hidden_states=None,
+        attention_mask=None,
+        temb=None,
+    ):
+        residual = hidden_states
+
+        if attn.spatial_norm is not None:
+            hidden_states = attn.spatial_norm(hidden_states, temb)
+
+        input_ndim = hidden_states.ndim
+
+        if input_ndim == 4:
+            batch_size, channel, height, width = hidden_states.shape
+            hidden_states = hidden_states.view(batch_size, channel, height * width).transpose(1, 2)
+
+        batch_size, sequence_length, _ = (
+            hidden_states.shape if encoder_hidden_states is None else encoder_hidden_states.shape
+        )
+        attention_mask = attn.prepare_attention_mask(attention_mask, sequence_length, batch_size)
+
+        if attn.group_norm is not None:
+            hidden_states = attn.group_norm(hidden_states.transpose(1, 2)).transpose(1, 2)
+
+        query = attn.to_q(hidden_states)
+
+        if encoder_hidden_states is None:
+            encoder_hidden_states = hidden_states
+        elif attn.norm_cross:
+            encoder_hidden_states = attn.norm_encoder_hidden_states(encoder_hidden_states)
+
+        key = attn.to_k(encoder_hidden_states)
+        value = attn.to_v(encoder_hidden_states)
+
+        query = attn.head_to_batch_dim(query)
+        key = attn.head_to_batch_dim(key)
+        value = attn.head_to_batch_dim(value)
+
+        attention_probs = attn.get_attention_scores(query, key, attention_mask)
+        hidden_states = torch.bmm(attention_probs, value)
+        hidden_states = attn.batch_to_head_dim(hidden_states)
+
+        # linear proj
+        hidden_states = attn.to_out[0](hidden_states)
+        # dropout
+        hidden_states = attn.to_out[1](hidden_states)
+
+        if input_ndim == 4:
+            hidden_states = hidden_states.transpose(-1, -2).reshape(batch_size, channel, height, width)
+
+        if attn.residual_connection:
+            hidden_states = hidden_states + residual
+
+        hidden_states = hidden_states / attn.rescale_output_factor
+
+        return hidden_states
+    
+    
+class IPAttnProcessor(nn.Module):
+    r"""
+    Attention processor for IP-Adapater.
+    Args:
+        hidden_size (`int`):
+            The hidden size of the attention layer.
+        cross_attention_dim (`int`):
+            The number of channels in the `encoder_hidden_states`.
+        scale (`float`, defaults to 1.0):
+            the weight scale of image prompt.
+        num_tokens (`int`, defaults to 4 when do ip_adapter_plus it should be 16):
+            The context length of the image features.
+    """
+
+    def __init__(self, hidden_size, cross_attention_dim=None, scale=1.0, num_tokens=4):
+        super().__init__()
+
+        self.hidden_size = hidden_size
+        self.cross_attention_dim = cross_attention_dim
+        self.scale = scale
+        self.num_tokens = num_tokens
+
+        self.to_k_ip = nn.Linear(cross_attention_dim or hidden_size, hidden_size, bias=False)
+        self.to_v_ip = nn.Linear(cross_attention_dim or hidden_size, hidden_size, bias=False)
+
+    def forward(
+        self,
+        attn,
+        hidden_states,
+        encoder_hidden_states=None,
+        attention_mask=None,
+        temb=None,
+    ):
+        residual = hidden_states
+
+        if attn.spatial_norm is not None:
+            hidden_states = attn.spatial_norm(hidden_states, temb)
+
+        input_ndim = hidden_states.ndim
+
+        if input_ndim == 4:
+            batch_size, channel, height, width = hidden_states.shape
+            hidden_states = hidden_states.view(batch_size, channel, height * width).transpose(1, 2)
+
+        batch_size, sequence_length, _ = (
+            hidden_states.shape if encoder_hidden_states is None else encoder_hidden_states.shape
+        )
+        attention_mask = attn.prepare_attention_mask(attention_mask, sequence_length, batch_size)
+
+        if attn.group_norm is not None:
+            hidden_states = attn.group_norm(hidden_states.transpose(1, 2)).transpose(1, 2)
+
+        query = attn.to_q(hidden_states)
+
+        if encoder_hidden_states is None:
+            encoder_hidden_states = hidden_states
+        else:
+            # get encoder_hidden_states, ip_hidden_states
+            end_pos = encoder_hidden_states.shape[1] - self.num_tokens
+            encoder_hidden_states, ip_hidden_states = encoder_hidden_states[:, :end_pos, :], encoder_hidden_states[:, end_pos:, :]
+            if attn.norm_cross:
+                encoder_hidden_states = attn.norm_encoder_hidden_states(encoder_hidden_states)
+
+        key = attn.to_k(encoder_hidden_states)
+        value = attn.to_v(encoder_hidden_states)
+
+        query = attn.head_to_batch_dim(query)
+        key = attn.head_to_batch_dim(key)
+        value = attn.head_to_batch_dim(value)
+
+        if xformers_available:
+            hidden_states = self._memory_efficient_attention_xformers(query, key, value, attention_mask)
+        else:
+            attention_probs = attn.get_attention_scores(query, key, attention_mask)
+            hidden_states = torch.bmm(attention_probs, value)
+        hidden_states = attn.batch_to_head_dim(hidden_states)
+        
+        # for ip-adapter
+        ip_key = self.to_k_ip(ip_hidden_states)
+        ip_value = self.to_v_ip(ip_hidden_states)
+        
+        ip_key = attn.head_to_batch_dim(ip_key)
+        ip_value = attn.head_to_batch_dim(ip_value)
+        
+        if xformers_available:
+            ip_hidden_states = self._memory_efficient_attention_xformers(query, ip_key, ip_value, None)
+        else:
+            ip_attention_probs = attn.get_attention_scores(query, ip_key, None)
+            ip_hidden_states = torch.bmm(ip_attention_probs, ip_value)
+        ip_hidden_states = attn.batch_to_head_dim(ip_hidden_states)
+
+        # region control
+        if len(region_control.prompt_image_conditioning) == 1:
+            region_mask = region_control.prompt_image_conditioning[0].get('region_mask', None)
+            if region_mask is not None:
+                h, w = region_mask.shape[:2]
+                ratio = (h * w / query.shape[1]) ** 0.5
+                mask = F.interpolate(region_mask[None, None], scale_factor=1/ratio, mode='nearest').reshape([1, -1, 1])
+            else:
+                mask = torch.ones_like(ip_hidden_states)
+            ip_hidden_states = ip_hidden_states * mask     
+
+        hidden_states = hidden_states + self.scale * ip_hidden_states
+
+        # linear proj
+        hidden_states = attn.to_out[0](hidden_states)
+        # dropout
+        hidden_states = attn.to_out[1](hidden_states)
+
+        if input_ndim == 4:
+            hidden_states = hidden_states.transpose(-1, -2).reshape(batch_size, channel, height, width)
+
+        if attn.residual_connection:
+            hidden_states = hidden_states + residual
+
+        hidden_states = hidden_states / attn.rescale_output_factor
+
+        return hidden_states
+
+
+    def _memory_efficient_attention_xformers(self, query, key, value, attention_mask):
+        # TODO attention_mask
+        query = query.contiguous()
+        key = key.contiguous()
+        value = value.contiguous()
+        hidden_states = xformers.ops.memory_efficient_attention(query, key, value, attn_bias=attention_mask)
+        # hidden_states = self.reshape_batch_dim_to_heads(hidden_states)
+        return hidden_states
+
+
+class AttnProcessor2_0(torch.nn.Module):
+    r"""
+    Processor for implementing scaled dot-product attention (enabled by default if you're using PyTorch 2.0).
+    """
+    def __init__(
+        self,
+        hidden_size=None,
+        cross_attention_dim=None,
+    ):
+        super().__init__()
+        if not hasattr(F, "scaled_dot_product_attention"):
+            raise ImportError("AttnProcessor2_0 requires PyTorch 2.0, to use it, please upgrade PyTorch to 2.0.")
+
+    def forward(
+        self,
+        attn,
+        hidden_states,
+        encoder_hidden_states=None,
+        attention_mask=None,
+        temb=None,
+    ):
+        residual = hidden_states
+
+        if attn.spatial_norm is not None:
+            hidden_states = attn.spatial_norm(hidden_states, temb)
+
+        input_ndim = hidden_states.ndim
+
+        if input_ndim == 4:
+            batch_size, channel, height, width = hidden_states.shape
+            hidden_states = hidden_states.view(batch_size, channel, height * width).transpose(1, 2)
+
+        batch_size, sequence_length, _ = (
+            hidden_states.shape if encoder_hidden_states is None else encoder_hidden_states.shape
+        )
+
+        if attention_mask is not None:
+            attention_mask = attn.prepare_attention_mask(attention_mask, sequence_length, batch_size)
+            # scaled_dot_product_attention expects attention_mask shape to be
+            # (batch, heads, source_length, target_length)
+            attention_mask = attention_mask.view(batch_size, attn.heads, -1, attention_mask.shape[-1])
+
+        if attn.group_norm is not None:
+            hidden_states = attn.group_norm(hidden_states.transpose(1, 2)).transpose(1, 2)
+
+        query = attn.to_q(hidden_states)
+
+        if encoder_hidden_states is None:
+            encoder_hidden_states = hidden_states
+        elif attn.norm_cross:
+            encoder_hidden_states = attn.norm_encoder_hidden_states(encoder_hidden_states)
+
+        key = attn.to_k(encoder_hidden_states)
+        value = attn.to_v(encoder_hidden_states)
+
+        inner_dim = key.shape[-1]
+        head_dim = inner_dim // attn.heads
+
+        query = query.view(batch_size, -1, attn.heads, head_dim).transpose(1, 2)
+
+        key = key.view(batch_size, -1, attn.heads, head_dim).transpose(1, 2)
+        value = value.view(batch_size, -1, attn.heads, head_dim).transpose(1, 2)
+
+        # the output of sdp = (batch, num_heads, seq_len, head_dim)
+        # TODO: add support for attn.scale when we move to Torch 2.1
+        hidden_states = F.scaled_dot_product_attention(
+            query, key, value, attn_mask=attention_mask, dropout_p=0.0, is_causal=False
+        )
+
+        hidden_states = hidden_states.transpose(1, 2).reshape(batch_size, -1, attn.heads * head_dim)
+        hidden_states = hidden_states.to(query.dtype)
+
+        # linear proj
+        hidden_states = attn.to_out[0](hidden_states)
+        # dropout
+        hidden_states = attn.to_out[1](hidden_states)
+
+        if input_ndim == 4:
+            hidden_states = hidden_states.transpose(-1, -2).reshape(batch_size, channel, height, width)
+
+        if attn.residual_connection:
+            hidden_states = hidden_states + residual
+
+        hidden_states = hidden_states / attn.rescale_output_factor
+
+        return hidden_states
+
+class IPAttnProcessor2_0(torch.nn.Module):
+    r"""
+    Attention processor for IP-Adapater for PyTorch 2.0.
+    Args:
+        hidden_size (`int`):
+            The hidden size of the attention layer.
+        cross_attention_dim (`int`):
+            The number of channels in the `encoder_hidden_states`.
+        scale (`float`, defaults to 1.0):
+            the weight scale of image prompt.
+        num_tokens (`int`, defaults to 4 when do ip_adapter_plus it should be 16):
+            The context length of the image features.
+    """
+
+    def __init__(self, hidden_size, cross_attention_dim=None, scale=1.0, num_tokens=4):
+        super().__init__()
+
+        if not hasattr(F, "scaled_dot_product_attention"):
+            raise ImportError("AttnProcessor2_0 requires PyTorch 2.0, to use it, please upgrade PyTorch to 2.0.")
+
+        self.hidden_size = hidden_size
+        self.cross_attention_dim = cross_attention_dim
+        self.scale = scale
+        self.num_tokens = num_tokens
+
+        self.to_k_ip = nn.Linear(cross_attention_dim or hidden_size, hidden_size, bias=False)
+        self.to_v_ip = nn.Linear(cross_attention_dim or hidden_size, hidden_size, bias=False)
+
+    def forward(
+        self,
+        attn,
+        hidden_states,
+        encoder_hidden_states=None,
+        attention_mask=None,
+        temb=None,
+    ):
+        residual = hidden_states
+
+        if attn.spatial_norm is not None:
+            hidden_states = attn.spatial_norm(hidden_states, temb)
+
+        input_ndim = hidden_states.ndim
+
+        if input_ndim == 4:
+            batch_size, channel, height, width = hidden_states.shape
+            hidden_states = hidden_states.view(batch_size, channel, height * width).transpose(1, 2)
+
+        batch_size, sequence_length, _ = (
+            hidden_states.shape if encoder_hidden_states is None else encoder_hidden_states.shape
+        )
+
+        if attention_mask is not None:
+            attention_mask = attn.prepare_attention_mask(attention_mask, sequence_length, batch_size)
+            # scaled_dot_product_attention expects attention_mask shape to be
+            # (batch, heads, source_length, target_length)
+            attention_mask = attention_mask.view(batch_size, attn.heads, -1, attention_mask.shape[-1])
+
+        if attn.group_norm is not None:
+            hidden_states = attn.group_norm(hidden_states.transpose(1, 2)).transpose(1, 2)
+
+        query = attn.to_q(hidden_states)
+
+        if encoder_hidden_states is None:
+            encoder_hidden_states = hidden_states
+        else:
+            # get encoder_hidden_states, ip_hidden_states
+            end_pos = encoder_hidden_states.shape[1] - self.num_tokens
+            encoder_hidden_states, ip_hidden_states = (
+                encoder_hidden_states[:, :end_pos, :],
+                encoder_hidden_states[:, end_pos:, :],
+            )
+            if attn.norm_cross:
+                encoder_hidden_states = attn.norm_encoder_hidden_states(encoder_hidden_states)
+
+        key = attn.to_k(encoder_hidden_states)
+        value = attn.to_v(encoder_hidden_states)
+
+        inner_dim = key.shape[-1]
+        head_dim = inner_dim // attn.heads
+
+        query = query.view(batch_size, -1, attn.heads, head_dim).transpose(1, 2)
+
+        key = key.view(batch_size, -1, attn.heads, head_dim).transpose(1, 2)
+        value = value.view(batch_size, -1, attn.heads, head_dim).transpose(1, 2)
+
+        # the output of sdp = (batch, num_heads, seq_len, head_dim)
+        # TODO: add support for attn.scale when we move to Torch 2.1
+        hidden_states = F.scaled_dot_product_attention(
+            query, key, value, attn_mask=attention_mask, dropout_p=0.0, is_causal=False
+        )
+
+        hidden_states = hidden_states.transpose(1, 2).reshape(batch_size, -1, attn.heads * head_dim)
+        hidden_states = hidden_states.to(query.dtype)
+
+        # for ip-adapter
+        ip_key = self.to_k_ip(ip_hidden_states)
+        ip_value = self.to_v_ip(ip_hidden_states)
+
+        ip_key = ip_key.view(batch_size, -1, attn.heads, head_dim).transpose(1, 2)
+        ip_value = ip_value.view(batch_size, -1, attn.heads, head_dim).transpose(1, 2)
+
+        # the output of sdp = (batch, num_heads, seq_len, head_dim)
+        # TODO: add support for attn.scale when we move to Torch 2.1
+        ip_hidden_states = F.scaled_dot_product_attention(
+            query, ip_key, ip_value, attn_mask=None, dropout_p=0.0, is_causal=False
+        )
+        with torch.no_grad():
+            self.attn_map = query @ ip_key.transpose(-2, -1).softmax(dim=-1)
+            #print(self.attn_map.shape)
+
+        ip_hidden_states = ip_hidden_states.transpose(1, 2).reshape(batch_size, -1, attn.heads * head_dim)
+        ip_hidden_states = ip_hidden_states.to(query.dtype)
+
+        # region control
+        if len(region_control.prompt_image_conditioning) == 1:
+            region_mask = region_control.prompt_image_conditioning[0].get('region_mask', None)
+            if region_mask is not None:
+                query = query.reshape([-1, query.shape[-2], query.shape[-1]])
+                h, w = region_mask.shape[:2]
+                ratio = (h * w / query.shape[1]) ** 0.5
+                mask = F.interpolate(region_mask[None, None], scale_factor=1/ratio, mode='nearest').reshape([1, -1, 1])
+            else:
+                mask = torch.ones_like(ip_hidden_states)
+            ip_hidden_states = ip_hidden_states * mask
+
+        hidden_states = hidden_states + self.scale * ip_hidden_states
+
+        # linear proj
+        hidden_states = attn.to_out[0](hidden_states)
+        # dropout
+        hidden_states = attn.to_out[1](hidden_states)
+
+        if input_ndim == 4:
+            hidden_states = hidden_states.transpose(-1, -2).reshape(batch_size, channel, height, width)
+
+        if attn.residual_connection:
+            hidden_states = hidden_states + residual
+
+        hidden_states = hidden_states / attn.rescale_output_factor
+
+        return hidden_states

InstantID/ip_adapter/resampler.py

+# modified from https://github.com/mlfoundations/open_flamingo/blob/main/open_flamingo/src/helpers.py
+import math
+
+import torch
+import torch.nn as nn
+
+
+# FFN
+def FeedForward(dim, mult=4):
+    inner_dim = int(dim * mult)
+    return nn.Sequential(
+        nn.LayerNorm(dim),
+        nn.Linear(dim, inner_dim, bias=False),
+        nn.GELU(),
+        nn.Linear(inner_dim, dim, bias=False),
+    )
+    
+    
+def reshape_tensor(x, heads):
+    bs, length, width = x.shape
+    #(bs, length, width) --> (bs, length, n_heads, dim_per_head)
+    x = x.view(bs, length, heads, -1)
+    # (bs, length, n_heads, dim_per_head) --> (bs, n_heads, length, dim_per_head)
+    x = x.transpose(1, 2)
+    # (bs, n_heads, length, dim_per_head) --> (bs*n_heads, length, dim_per_head)
+    x = x.reshape(bs, heads, length, -1)
+    return x
+
+
+class PerceiverAttention(nn.Module):
+    def __init__(self, *, dim, dim_head=64, heads=8):
+        super().__init__()
+        self.scale = dim_head**-0.5
+        self.dim_head = dim_head
+        self.heads = heads
+        inner_dim = dim_head * heads
+
+        self.norm1 = nn.LayerNorm(dim)
+        self.norm2 = nn.LayerNorm(dim)
+
+        self.to_q = nn.Linear(dim, inner_dim, bias=False)
+        self.to_kv = nn.Linear(dim, inner_dim * 2, bias=False)
+        self.to_out = nn.Linear(inner_dim, dim, bias=False)
+
+
+    def forward(self, x, latents):
+        """
+        Args:
+            x (torch.Tensor): image features
+                shape (b, n1, D)
+            latent (torch.Tensor): latent features
+                shape (b, n2, D)
+        """
+        x = self.norm1(x)
+        latents = self.norm2(latents)
+        
+        b, l, _ = latents.shape
+
+        q = self.to_q(latents)
+        kv_input = torch.cat((x, latents), dim=-2)
+        k, v = self.to_kv(kv_input).chunk(2, dim=-1)
+        
+        q = reshape_tensor(q, self.heads)
+        k = reshape_tensor(k, self.heads)
+        v = reshape_tensor(v, self.heads)
+
+        # attention
+        scale = 1 / math.sqrt(math.sqrt(self.dim_head))
+        weight = (q * scale) @ (k * scale).transpose(-2, -1) # More stable with f16 than dividing afterwards
+        weight = torch.softmax(weight.float(), dim=-1).type(weight.dtype)
+        out = weight @ v
+        
+        out = out.permute(0, 2, 1, 3).reshape(b, l, -1)
+
+        return self.to_out(out)
+
+
+class Resampler(nn.Module):
+    def __init__(
+        self,
+        dim=1024,
+        depth=8,
+        dim_head=64,
+        heads=16,
+        num_queries=8,
+        embedding_dim=768,
+        output_dim=1024,
+        ff_mult=4,
+    ):
+        super().__init__()
+        
+        self.latents = nn.Parameter(torch.randn(1, num_queries, dim) / dim**0.5)
+        
+        self.proj_in = nn.Linear(embedding_dim, dim)
+
+        self.proj_out = nn.Linear(dim, output_dim)
+        self.norm_out = nn.LayerNorm(output_dim)
+        
+        self.layers = nn.ModuleList([])
+        for _ in range(depth):
+            self.layers.append(
+                nn.ModuleList(
+                    [
+                        PerceiverAttention(dim=dim, dim_head=dim_head, heads=heads),
+                        FeedForward(dim=dim, mult=ff_mult),
+                    ]
+                )
+            )
+
+    def forward(self, x):
+        
+        latents = self.latents.repeat(x.size(0), 1, 1)
+        
+        x = self.proj_in(x)
+        
+        for attn, ff in self.layers:
+            latents = attn(x, latents) + latents
+            latents = ff(latents) + latents
+            
+        latents = self.proj_out(latents)
+        return self.norm_out(latents)
\ No newline at end of file

InstantID/ip_adapter/utils.py

+import torch.nn.functional as F
+
+
+def is_torch2_available():
+    return hasattr(F, "scaled_dot_product_attention")