bundles / skimage 0.26.1rc0.dev0 / skimage / exposure / exposure / cumulative_distribution

function

`skimage.exposure.exposure:cumulative_distribution`

source: /_skimage2/exposure/exposure.py:313

Signature

def cumulative_distribution(image, nbins = 256)

Summary

Return cumulative distribution function (cdf) for the given image.

Parameters

image : array: Image array.
nbins : int, optional: Number of bins for image histogram.

Returns

img_cdf : array: Values of cumulative distribution function.
bin_centers : array: Centers of bins.

Examples

from skimage import data, exposure, img_as_float
image = img_as_float(data.camera())
hi = exposure.histogram(image)
cdf = exposure.cumulative_distribution(image)
all(cdf[0] == np.cumsum(hi[0])/float(image.size))

✓

True

See also

histogram

Aliases

skimage.exposure.cumulative_distribution