ColorMatrix
Quasimondo’s ColorMatrix class upgraded to AS3, with new features. From the site:
Compared to the AS2 version I have added several new methods and of course tried to use optimizations wherever possible. Two new methods that are especially interesting are:
rotateHue() which tries to preserve the luminance whilst changing the hue (which means this is the “correct” but calculation wise more complicated way of doing it).
applyColorDeficiency() which I ported back from the Javascript version that the guys at NoFunc created from my Actionscript version and which allows to preview images the way colorblind people would see it.