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{{Lead too short|date=November 2023}}
{{Use American English|date=March 2021}}
{{Use mdy dates|date=March 2021}}
'''Histogram equalization''' is a method in [[image processing]] of [[contrast (vision)|contrast]] adjustment using the [[image]]'s [[Image histogram|histogram]].
[[Image:Histogrammeinebnung.png|thumb|right|300px|alt=A histogram which is zero apart from a central area containing strong peaks is transformed by stretching the peaked area to fill the entire x-axis.|Histograms of an image before and after equalization.]]
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