Are there any algorithms for removing lighting from video? I have a video in which some objects are too strongly lit. How might I remove lighting from that objects without corrupting the entire video?
+3
A:
I suspect that the most straight forward approach will be something like this:
for each frame in video
convert to HSL
select connected pixels which have luminance above a certain threshold
convert those areas that are "large" to regions
expand regions or soften the region (soft mask, Gaussian blur)
mask original image to that area
apply either brightness/contrast or histogram equalize on that area
overlay back onto original image
plinth
2010-02-03 17:12:19