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limuloo / PyDIff

[IJCAI 2023 ORAL] "Pyramid Diffusion Models For Low-light Image Enhancement" (Official Implementation)
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A question about ddim pyramid sampling #17

Open Maydaybye opened 5 months ago

Maydaybye commented 5 months ago

Generating new noise here to assign to sample_img, won't it be inconsistent with the learned distribution, thereby affecting the result? image

limuloo commented 5 months ago

The noise you mentioned is added according to the forward formula of diffusion models (the same as the training process), which is still consistent with the learned distribution.