Why HE doesn't have flat histogram
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Why do histogram equalisation programs usually not produce images with flat histograms?

Answers (1)
Image Analyst
on 19 Feb 2016
0 votes
All it does is to redistribute the gray levels non-linearly. It's not flat because the image quantized into gray levels. If it were continuous, it would be flat. However, there are ways to get a flat histogram. See my attached demos.
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