一种直方图规定化中的组映射算法

A Group Mapping Law in Histogram Matching

在数字图像增强处理中,直方图规定化可以将给定图像的直方图变换成特定的形状,从而有选择地增强某个灰度值范围内的对比度,以获得最佳的视觉效果。此过程中最重要的是原始直方图到规定直方图的映射规则。本文给出一种组映射算法(GAGML),可以较好地实现这种映射。

In digital images enhancement processing, histogram matching can change the histogram of a given image into specific appearance, so it can enhance the contrast of the pixels of one gray range selectively to get the best optical effect. In this progress the most important work is the mapping law from original histogram to matching histogram. One group mapping law-GAGML is given in this thesis, it can realize the histogram matching mapping.