what is the matlab code for adaptive gamma correction in an image?
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deepak behera
on 7 Nov 2013
Commented: Walter Roberson
on 1 Aug 2020
what is the code for adaptive gamma correction of an image?
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Image Analyst
on 7 Nov 2013
What does that mean? adaptive usually means it varies by location in the image but I've never heard of gamma varying locally in an image. The gamma applies to the whole image, so what is adapting?
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prasanth s
on 1 Aug 2020
Edited: prasanth s
on 1 Aug 2020
Walter Roberson
on 1 Aug 2020
Historically with CRT monitors it was common for gamma to vary across the image, due to differences in thickness of coatings, and the difficulty in getting the coatings shaped properly taking into account the curve of the tube. Historically it was common for the gamma to be lower around the edges (that is, for brightness for a given amount of energy to be lower.) If I recall correctly, Sony's Trinitron was a substantial improvement in quality compared to previous generations of monitors.
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