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cumulative histogram

A running total of the histogram up to a given intensity.

The cumulative histogram H(i)=\sum_{k=0}^{i}h(k) is a running total of the histogram up to intensity i; histogram equalization derives the point operation f(v)=255\cdot H(v)/N from it, spreading intensity values to use the full available range.

See also

image histogram histogram matching (specification)
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Graph settings

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