I'm studying image warping and I'm unsure how to warp a starting rectangular image into another image where the box corner points have been changed as I want:
As far as I've understood, I need to:
1) Decide the four points (e.g. by using direct mapping on the border cases of the transformation)
2) Create a lattice of integer points on it (how?)
3) Do reverse mapping on those integer points to get the values in the original image
I can't say I understood a lot of that, can somebody help me out please?