title: How to apply CLAHE on RGB color images
body: <p>CLAHE is Contrast Limited Adaptive Histogram Equalization and a source in C can be found at <a href="http://tog.acm.org/resources/GraphicsGems/gemsiv/clahe.c" rel="noreferrer">http://tog.acm.org/resources/GraphicsGems/gemsiv/clahe.c</a></p>
  
  <p>So far I have only seen some examples/tutorials about applying CLAHE on grayscale images so is it possible to apply CLAHE on color images (such as RGB 3 channles images)? If yes, how?</p>