Building Laplacian Pyramid using EXPAND
operator. The PyrUp
operator is implemented by torch.nn.functional.conv_transpose2d
. The PyrDown
operator is implemented by torch.nn.functional.conv2d
using gaussian kernel.
scale | pytorch-implementation | opencv-implementation |
---|---|---|
input | ![]() |
![]() |
0 | ![]() |
![]() |
1 | ![]() |
![]() |
2 | ![]() |
![]() |
3 | ![]() |
![]() |