opencv: add cvclahe element to apply adaptive histogram equalization
Submitted by Joshua M. Doe
Created attachment 328507
patch adding cvclahe element
Patch attached which adds cvclahe, an OpenCV element which applies contrast limited adaptive histogram equalization (https://en.wikipedia.org/wiki/Adaptive_histogram_equalization) to RGB, GRAY8, and GRAY16_LE video.
This is useful to bring out detail in high dynamic range scenes. While it provides interesting results in RGB and GRAY8, it is most useful in GRAY16_LE video.
Patch 328507, "patch adding cvclahe element":