equalize-hist

equalize_hist

skimage.exposure.equalize_hist(image, nbins=256, mask=None) [source]

Return image after histogram equalization.

Parameters:

image : array

Image array.

nbins : int, optional

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

mask: ndarray 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:

out : float array

Image array after histogram equalization.

Notes

This function is adapted from [R88] with the author’s permission.

References

[R88] (1, 2) http://www.janeriksolem.net/2009/06/histogram-equalization-with-python-and.html
[R89] http://en.wikipedia.org/wiki/Histogram_equalization
doc_scikit_image
2017-01-12 17:20:54
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