Midway video equalization

Abstract

This article presents an implementation of the `Midway Equalization' method for videos. This technique allows us to modify the image histograms so that they present similar luminances. We propose two algorithms: the rst one based on histogram inversion and the second one on the sorting of images intensities. The former computes the histograms and then nds the contrast change functions by convolving the inverse histograms with a Gaussian function.