计算机与数字工程2011，Vol.39Issue(3)：5-8,50,5.
基于直方图修正的局部对比度增强算法
Local Contrast Enhancement Algorithm Based on Histogram Modification Framework
摘要
Abstract
According to the shortages of conventional histogram equalization algorithm, such as excessive contrast enhancement, noise amplification, lowly local contrast and so on, a local contrast enhancement algorithm based on histogram modification framework is presented. Firstly, using adaptively partially overlapped sub-block method the image is divided into a series of sub-blocks, sizes of which are adaptively adjusted according to the local characteristics of the image, then each sub-block is processed by using contrast enhancement algorithm base on histogram modification framework, finally the processed results of overlapped sub-blocks are fused to achieve the finally enhanced image. Experimental results show that the algorithm has the advantage of noise robustness, controllable the level of contrast enhancement, adjustable dynamic range and strong local contrast, and enhanced image has natural visual effect.关键词
直方图修正/局部直方图均衡/对比度增强分类
信息技术与安全科学引用本文复制引用
喻欣,张勇,杜庆,杨帅..基于直方图修正的局部对比度增强算法[J].计算机与数字工程,2011,39(3):5-8,50,5.基金项目
国家科技支撑计划中国互动新媒体网络与新业务科技工程新业务研究及实现-电视即时通信(编号:2008BAH28B06)资助. （编号:2008BAH28B06）
