I,m trying to make a laplacian pyramid for image reconstruction but I,ve got a problem.
When downsampling I just get the even rows/columns and discard the rest, when upsampling I duplicate each row/column.
But this creates a situation where sizes of images may not be the same, not allowing me to create a LoG by subtraction. If I downsample a odd size img and the upsample it it will be even.
How do I do this correctly so I can reconstruct the original image perfectly?