摘要
针对视频图像在获取过程中产生的偏色现象,提出了一种基于加减性色彩系统的视频偏色盲估计方法。计算图像RGB三通道的颜色比率和能量差,根据颜色比率判断图像的色彩系统类型及偏色通道,融合偏色通道的颜色比率和能量差得到偏色因子,实现偏色图像的检测及偏色程度估计。依据本文所设计的评价标准,对图像库进行实验测试,实验结果表明,基于加减性色彩系统的视频盲估计方法与主观评价结果具有较好的吻合。
A new approach was proposed to estimate color cast in images.First,the proposed approach calculated the color ratio and differential energy in the RGB color space,and then the color system type and color cast channel of the image were automatically determined.The color ratios obtained at different channels were fused according to the color cast channel and corresponding differential energy to obtain a single cast factor for the detection of the color cast image and the estimation of the degree of color.The experimental results were provided to demonstrate that the proposed approach was consistent to human subjective evaluations.
出处
《计算机工程与设计》
CSCD
北大核心
2014年第6期2060-2064,2113,共6页
Computer Engineering and Design
基金
国家自然科学基金项目(61105010
61375017)
武汉市晨光计划基金项目(201150431095)
湖北省高等学校优秀中青年科技创新团队计划基金项目(T201202)
关键词
颜色比率
能量差
偏色因子
色彩系统类型
偏色程度估计
color ratio
differential energy
color cast factor
color system type
color cast estimation
