摘要
从RGB颜色空间入手,在对目前使用较为广泛的几种RGB色差度量公式进行分析对比的基础上,总结出RGB颜色色差的3个基本规律,提出颜色分量的重要程度这一概念。并根据颜色分量的重要程度用动态系数调整RGB颜色间的空间距离和矢量角度值,从而得到了一种全新的RGB颜色空间的色差度量公式。通过高复杂度图像的颜色量化实验证明该色差公式在颜色量化中的性能达到了CIELUV色差公式的水平,有效地节约了内存空间和计算时间。
Based on the study of RGB color space and the compares and analysis of several color difference formulas in RGB color space,this paper summarizes three rules of color difference in RGB color space and proposes the conception of the importance of the color component.A new color difference formula in RGB color space is achieved by dynamically adjusting the vector distance and angular between a pair of RGB colors.The dynamic coefficient is weighted by the importanee of color component. Color quantization experiment of highly complex color images demonstrates that this new color difference formula＇s performance is as better as CIELUV color difference formula while it saves memory and shortens the calculation time.
出处
《计算机工程与应用》
CSCD
北大核心
2010年第6期154-156,共3页
Computer Engineering and Applications
关键词
颜色量化
色差
颜色空间
颜色分量
动态聚类
color quantization
color difference
color space
color component
dynamic clustering
