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Fix the issue(keras-team#2195): Improve readability and comprehensibility of Stable Diffusion source #2197

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Merged
merged 1 commit into from
Dec 11, 2023
Merged

Fix the issue(keras-team#2195): Improve readability and comprehensibility of Stable Diffusion source #2197

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4 changes: 3 additions & 1 deletion keras_cv/models/stable_diffusion/stable_diffusion.py
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Original file line number Diff line number Diff line change
Expand Up @@ -235,7 +235,9 @@ def generate_image(
+ unconditional_guidance_scale * (latent - unconditional_latent)
)
a_t, a_prev = alphas[index], alphas_prev[index]
latent = ops.cast(latent, latent_prev.dtype)
# Keras backend array need to cast explicitly
target_dtype = latent_prev.dtype
latent = ops.cast(latent, target_dtype)
pred_x0 = (latent_prev - math.sqrt(1 - a_t) * latent) / math.sqrt(
a_t
)
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