and how do you generate the feature descriptors and the matching? what’s the reference you are matching against?
I’m asking to see the source and the reference picture as well as some illustration of the keypoint match pairs.
it all looks like the methods perform precisely as they should, i.e. it’s exactly an affine or lesser transformation.
oh by the way, did you notice that your magazine cover is physically warped? did you expect to correct that with nothing but an affine transformation? not even a perspective transform (homography) can fix that because everything assumes plane-to-plane transformations, while your magazine cover isn’t a plane anymore.
here you see the first page after the cover peek through because the cover sheet is wavy.
