Adaptive Contrast Enhancement: Basic Examples

Two notes: (1) These images have been brightened a bit, and those on the left should look quite dark; (2) Although the new colour process is an improvement, you would probably not use full-strength on a colour image, as shown on the right.

The original image, in grayscale and colour, is on the left. Fully `adaptive histogram equalized' versions are on the right.

(Click on any image for enlarged version.)
OriginalFraction 0.65,
 local-mean replacementFraction 0.3,
 local-mean replacementHistogram
 equalized
Colour originalColour, fraction 0.65,
 local-mean replacementColour, fraction 0.3,
 local-mean replacementColour, histogram
 equalized


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