一种RGB模型彩色图像增强方法

为了研究基于全参考图像的RGB模型彩色图像增强方法及其质量的客观评价方法,依据RGB模型彩色图像分解后得到的颜色分量具有相关性的理论,应用基于点处理的灰度图像的灰度变换理论,提出了基于像素值区间变换系数相同的和基于分量的变换系数比例一致的图像增强算法.实验结果表明,提出的算法均可用于一定目的的RGB模型彩色图像的增强,由给出一组基于误差的单位像素的增强质量的客观评价的计算公式计算出的数据可用于彩色图像的增强质量的客观评价,且与彩色图像的增强效果的主观质量评价结果是一致的,可用于彩色图像增强质量的评价.

A Kind of Enhancement Method of Color Image Based on RGB Color Model

In order to research the image enhancement method based on RGB model and the objective evalua- tion based on the full reference image, based on the relevance theory of color components obtained after decompo-sing color image based on RGB model, we applying the gray transform theory of gray image processing based on pix-el processing. The enhancement algorithms are proposed based on the same transformation coefficients of the pixel value range and the same proportional scale of transformation coefficient. The experimental results show that the al- gorithms can be used to enhance the image based on RGB model. The calculated data from a group of formula of the objective quality assessment based on the error of the unit pixel also can be used to the objective quality assess- ment of color image. It is consistent with the results of subjective quality assessment after enhancing the color im- age. So it can be used for the quality evaluation of color image enhancement.