基于多独立通道自适应性图像对比度增强算法  

Self-adaptive Image Contrast Enhancement Algorithm Based on Independent Channels

作　　者：赵静[1] 

机构地区：[1]宁夏大学数学计算机学院,宁夏银川750021

出　　处：《电视技术》2012年第11期24-26,共3页Video Engineering

基　　金：宁夏大学科研基金资助项目(NDZR10-22);宁夏自然科学基金项目(NZ1137)

摘　　要：针对彩色图像对比度增强处理中存在的"伪彩色"和灰度趋向性现象,提出了一种基于多独立通道自适应性彩色图像对比度增强算法。该算法将图像由RGB色彩空间转为HSI色彩空间,在色调恒不变的基础上选取饱和度自适应因子对灰度通道进行相关增强,同时选择灰度自适应因子对饱和度进行增强,该增强算法建立起了饱和度和灰度增强的相关性,提升了图像视觉效果,能够很好地应用在彩色图像对比度增强的图像处理中。A self-adaptive color image contrast enhancement ＇algorithm based on independeul channels is proposed to reduce the existence of false color and gray trends phenomenon. Firstly, the image color space from RGB to HIS is transformed. Secondly, the saturation adaptive factor is used to enhance the gray channel based on the constant hue, and the gray adaptive factor is used to enhance the saturation. Finally, the relevance between image gray and image saturation is established and the human visual effects of image are improved. The algorithm can be applied in the image processing of color image contrast enhancement.

关 键 词：对比度增强 灰度增强 饱和度增强 

分 类 号：TN911.73[电子电信—通信与信息系统] TP391.41[电子电信—信息与通信工程]