Digital image warping
by George Wolberg · first published 1992
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The book "Digital Image Warping" by George Wolberg[0] goes into these tricks in great detail, as well as choices for the resampling filter. The world is very different today, bilinear texture sampling is built into GPU hardware and…
on “Math behind rotation in MS Paint (2011)” ↗…IT? Answers can contain field description (SW devel - gis/graphics/radiocommunication), problem description (interpolation), key math abilities (convolution, impulse response), basic literature (wolberg - digital image warping; pharr & humphreys - physically based rendering), reference/notable (but preferably lightweight) implementations (anti-grain geometry), and so on.
on “Ask HN: Mathematically demandig areas in IT” ↗