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turn off classifier free guidance if predicting x_start for diffusion prior

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Phil Wang
2022-05-07 09:38:17 -07:00
parent c87b84a259
commit 4010aec033
2 changed files with 3 additions and 3 deletions
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4
dalle2_pytorch/dalle2_pytorch.py
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@@ -800,7 +800,7 @@ class DiffusionPrior(BaseGaussianDiffusion):
image_size = None,
image_channels = 3,
timesteps = 1000,
cond_drop_prob = 0.2,
cond_drop_prob = 0.,
loss_type = "l1",
predict_x_start = True,
beta_schedule = "cosine",
@@ -834,7 +834,7 @@ class DiffusionPrior(BaseGaussianDiffusion):
self.image_embed_dim = default(image_embed_dim, lambda: clip.dim_latent)
self.channels = default(image_channels, lambda: clip.image_channels)
self.cond_drop_prob = cond_drop_prob
self.cond_drop_prob = cond_drop_prob if not predict_x_start else 0.
self.condition_on_text_encodings = condition_on_text_encodings
# in paper, they do not predict the noise, but predict x0 directly for image embedding, claiming empirically better results. I'll just offer both.

2
setup.py
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@@ -10,7 +10,7 @@ setup(
'dream = dalle2_pytorch.cli:dream'
],
},
version = '0.1.8',
version = '0.1.9',
license='MIT',
description = 'DALL-E 2',
author = 'Phil Wang',