Equalize histogram of grayscale image.
The histogram contains n bins, which defaults to 64.
I: Image in double format, with values from 0.0 to 1.0.
J: Returned image, in double format as well.
Note that the algorithm used for histogram equalization gives results qualitatively comparable but numerically different from MATLAB implementation.
See also: imhist, mat2gray, brighten.
Package: image