skimage2.exposure.equalize_hist

skimage2.exposure.equalize_hist(image, nbins=256, mask=None)

Return image after histogram equalization.

Parameters:

imagearray

Image array.

nbinsint, optional

Number of bins for image histogram. Note: this argument is ignored for integer images, for which each integer is its own bin.

maskndarray of bools or 0s and 1s, optional

Array of same shape as image. Only points at which mask == True are used for the equalization, which is applied to the whole image.

Returns:

outfloat array

Image array after histogram equalization.

Notes

This function is adapted from [1] with the author’s permission.

References

[1]

http://www.janeriksolem.net/histogram-equalization-with-python-and.html

[2]

https://en.wikipedia.org/wiki/Histogram_equalization