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4 changes: 3 additions & 1 deletion denoising_diffusion_pytorch/denoising_diffusion_pytorch.py
Original file line number Diff line number Diff line change
Expand Up @@ -302,7 +302,9 @@ def __init__(

dims = [init_dim, *map(lambda m: dim * m, dim_mults)]
in_out = list(zip(dims[:-1], dims[1:]))


assert dim > 3 and dim % 2 == 0, 'in this version, the number of channels must be even and greater than 3'
resnet_block_groups = min(resnet_block_groups, dim)
block_klass = partial(ResnetBlock, groups = resnet_block_groups)

# time embeddings
Expand Down