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chenpangpang
diffusers
Commits
d5c527a4
Commit
d5c527a4
authored
Jun 26, 2022
by
Patrick von Platen
Browse files
clean up
parent
135acd83
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src/diffusers/pipelines/pipeline_score_sde_ve.py
src/diffusers/pipelines/pipeline_score_sde_ve.py
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src/diffusers/pipelines/pipeline_score_sde_ve.py
View file @
d5c527a4
#!/usr/bin/env python3
import
numpy
as
np
import
torch
import
PIL
from
diffusers
import
DiffusionPipeline
# TODO(Patrick, Anton, Suraj) - rename `x` to better variable names
class
ScoreSdeVePipeline
(
DiffusionPipeline
):
def
__init__
(
self
,
model
,
scheduler
):
super
().
__init__
()
...
...
@@ -23,7 +18,7 @@ class ScoreSdeVePipeline(DiffusionPipeline):
model
=
self
.
model
.
to
(
device
)
centered
=
False
# TODO(Patrick) move to scheduler config
n_steps
=
1
x
=
torch
.
randn
(
*
shape
)
*
self
.
scheduler
.
config
.
sigma_max
...
...
@@ -45,50 +40,4 @@ class ScoreSdeVePipeline(DiffusionPipeline):
x
,
x_mean
=
self
.
scheduler
.
step_pred
(
result
,
x
,
t
)
x
=
x_mean
if
centered
:
x
=
(
x
+
1.0
)
/
2.0
return
x
# from configs.ve import ffhq_ncsnpp_continuous as configs
# from configs.ve import cifar10_ncsnpp_continuous as configs
# ckpt_filename = "exp/ve/cifar10_ncsnpp_continuous/checkpoint_24.pth"
# ckpt_filename = "exp/ve/ffhq_1024_ncsnpp_continuous/checkpoint_60.pth"
# Note usually we need to restore ema etc...
# ema restored checkpoint used from below
# pipeline = ScoreSdeVePipeline.from_pretrained("/home/patrick/ffhq_ncsnpp")
# x = pipeline(num_inference_steps=2)
# for 5 cifar10
# x_sum = 106071.9922
# x_mean = 34.52864456176758
# for 1000 cifar10
# x_sum = 461.9700
# x_mean = 0.1504
# for N=2 for 1024
# x_sum = 3382810112.0
# x_mean = 1075.366455078125
#
#
# def check_x_sum_x_mean(x, x_sum, x_mean):
# assert (x.abs().sum() - x_sum).abs().cpu().item() < 1e-2, f"sum wrong {x.abs().sum()}"
# assert (x.abs().mean() - x_mean).abs().cpu().item() < 1e-4, f"mean wrong {x.abs().mean()}"
#
#
# check_x_sum_x_mean(x, x_sum, x_mean)
#
#
# def save_image(x):
# image_processed = np.clip(x.permute(0, 2, 3, 1).cpu().numpy() * 255, 0, 255).astype(np.uint8)
# image_pil = PIL.Image.fromarray(image_processed[0])
# image_pil.save("../images/hey.png")
#
#
# save_image(x)
return
x_mean
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