Histogram Equalization(HE)

Contains implementation and description of the algorithm used to compute global histogram equalization of input images.

Algorithm :- 1. If histogram A is to be equalized compute the cumulative histogram of A. 2. Let CFD(A) refer to the cumulative histogram of A 3. For a uniform histogram A', CDF(A') = A' 4. We need to transform A to A' such that 5. CDF(A') = CDF(A) => A' = CDF(A) 6. Hence the pixel transform , px => histogram_of_ith_channel[px].