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apply unsharp mask

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Kohya S
2023-11-27 23:50:21 +09:00
parent 298c6c2343
commit 2c50ea0403
1 changed files with 13 additions and 2 deletions
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15
sdxl_gen_img.py
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@@ -802,6 +802,10 @@ class PipelineLike:
latents, scale_factor=current_ratio, mode="bicubic", align_corners=False
).to(org_dtype)
# apply unsharp mask / アンシャープマスクを適用する
blurred = torchvision.transforms.transforms.GaussianBlur(3, sigma=(0.5, 0.5))(latents)
latents = latents + (latents - blurred) * 0.5
for i, t in enumerate(tqdm(timesteps)):
resized_size = None
if enable_gradual_latent:
@@ -1434,8 +1438,9 @@ class EulerAncestralDiscreteSchedulerGL(EulerAncestralDiscreteScheduler):
super().__init__(*args, **kwargs)
self.resized_size = None
def set_resized_size(self, size):
def set_resized_size(self, size, s_noise=0.5):
self.resized_size = size
self.s_noise = s_noise
def step(
self,
@@ -1518,6 +1523,7 @@ class EulerAncestralDiscreteSchedulerGL(EulerAncestralDiscreteScheduler):
noise = diffusers.schedulers.scheduling_euler_ancestral_discrete.randn_tensor(
model_output.shape, dtype=model_output.dtype, device=device, generator=generator
)
s_noise = 1.0
else:
print(
"resized_size", self.resized_size, "model_output.shape", model_output.shape, "prev_sample.shape", prev_sample.shape
@@ -1530,14 +1536,19 @@ class EulerAncestralDiscreteSchedulerGL(EulerAncestralDiscreteScheduler):
prev_sample.float(), size=self.resized_size, mode="bicubic", align_corners=False
).to(dtype=org_dtype)
# apply unsharp mask / アンシャープマスクを適用する
blurred = torchvision.transforms.transforms.GaussianBlur(3, sigma=(0.5, 0.5))(prev_sample)
prev_sample = prev_sample + (prev_sample - blurred) * 0.5
noise = diffusers.schedulers.scheduling_euler_ancestral_discrete.randn_tensor(
(model_output.shape[0], model_output.shape[1], self.resized_size[0], self.resized_size[1]),
dtype=model_output.dtype,
device=device,
generator=generator,
)
s_noise = self.s_noise
prev_sample = prev_sample + noise * sigma_up
prev_sample = prev_sample + noise * sigma_up * s_noise
# upon completion increase step index by one
self._step_index += 1