一种改进的图像均衡化算法的研究与应用  

The Research and Application of One Improved Histogram Equalization Algorithm

作　　者：芮同林[1] 彭国华[1] 

机构地区：[1]西北工业大学理学院,陕西西安710072

出　　处：《微电子学与计算机》2006年第11期58-59,共2页Microelectronics & Computer

摘　　要：直方图均衡化是图像增强的一种有效方法,其基本思想是调整图像的灰度分布。文章从图像的信息熵入手,提出了一种直方图均衡化的改进算法,通过对算法中调节参数的选择来获取更大的信息熵,该算法避免了均衡化过程中灰度过多合并,图像过亮等现象,改善了图像质量,实验验证了该算法更为有效。Histogram Equalization plays an important role in image enhancement and it＇s basic idea is to adjust the image＇ s grayscale distribution, In this paper, An improved method of histogram equalization is presented in terms of information entropy. The algorithm can work out a higher information entropy through selecting one proper parameter. Not only could it avoid over-combination of grayscale and over-bright phenomenon but also enhance the image＇s quality. Many experiments prove that the algorithm is efficient.

关 键 词：直方图均衡化 图像增强 信息熵 

分 类 号：TN919[电子电信—通信与信息系统]