摘要
图像增强是数字图像的预处理,对图像整体或局部特征能有效地改善。我们讨论了基于直方图的均衡化和规定化处理的图像增强技术基本原理,给出了相关推导公式和算法;同时,以一个灰度图像为例,用MATLAB语言实现了直方图均衡化和规定化增强处理,并给出了具体程序、实验结果图像及直方图。结果表明,直方图均衡化和规定化处理能有效改善灰度图像的对比度差和灰度动态范围。
Image enhancement which is also called image pre-processing plays an indispensable role m signal Image processing. This article introduces two kinds of algorithm-hlstogram equalization and histogram specifications, gives an experimental result based on MATLAB. From the relevant images and histograms of realization, it is clear that histogram enhancement can improve the contrast details and equalize the dynamic range of image gray level.
出处
《计算机工程与科学》
CSCD
2006年第2期54-56,共3页
Computer Engineering & Science
