I am experiencing edge effects when trying to use ippiRotate with small images. They (effects) are possibly present on bigger images as well but it is easier to see them on very small ones.
When rotating very small image (w = 8, h = 2) I get wrong result picture - and if I pad it with 4 extra lines at the top and 4 extra lines at the bottom so that input image size if 8 by 10 everything works perfectly well. I do not receive error message in both cases. Am I supposed to add that edge lines (I did not find such requirement in the manual) or is it erroneous behavior?
Thanks a lot,
Another thing is your "discovery" looks like a very old problem with IPP rotate functions and a verification / investigation by IPP software developers is really needed.