by Codruta Orniana Ancuti, Cosmin Ancuti and Phillipe Bekaert
This paper talks about a de-colorization method (maybe useful for de-saturating photos?). The basic idea is quite simple: the ultimate luminance is the original one multiplied by a coefficient that is defined by hue and saturation. There are certain tuning for the highlighted regions. I just got a simple experiment with OpenCV. But it doesn't work very well...
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