allow use custom local dataset for controlnet training scripts (#2928)

use custom local datset
Co-authored-by: yiyixuxu <yixu310@gmail,com>
Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com>

examples/controlnet/train_controlnet.py

@@ -542,16 +542,13 @@ def make_train_dataset(args, tokenizer, accelerator):
             cache_dir=args.cache_dir,
         )
     else:
-        data_files = {}
         if args.train_data_dir is not None:
-            data_files["train"] = os.path.join(args.train_data_dir, "**")
             dataset = load_dataset(
-            "imagefolder",
-            data_files=data_files,
+                args.train_data_dir,
                 cache_dir=args.cache_dir,
             )
         # See more about loading custom images at
-        # https://huggingface.co/docs/datasets/v2.4.0/en/image_load#imagefolder
+        # https://huggingface.co/docs/datasets/v2.0.0/en/dataset_script
 
     # Preprocessing the datasets.
     # We need to tokenize inputs and targets.

examples/controlnet/train_controlnet_flax.py

@@ -477,16 +477,13 @@ def make_train_dataset(args, tokenizer, batch_size=None):
             streaming=args.streaming,
         )
     else:
-        data_files = {}
         if args.train_data_dir is not None:
-            data_files["train"] = os.path.join(args.train_data_dir, "**")
             dataset = load_dataset(
-            "imagefolder",
-            data_files=data_files,
+                args.train_data_dir,
                 cache_dir=args.cache_dir,
             )
         # See more about loading custom images at
-        # https://huggingface.co/docs/datasets/v2.4.0/en/image_load#imagefolder
+        # https://huggingface.co/docs/datasets/v2.0.0/en/dataset_script
 
     # Preprocessing the datasets.
     # We need to tokenize inputs and targets.