Vector-Angular distance color difference formula in RGB color space

doi:10.3778/j.issn.1002-8331.2010.06.044

Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (6): 154-156.DOI: 10.3778/j.issn.1002-8331.2010.06.044

• 图形、图像、模式识别 • Previous Articles Next Articles

Vector-Angular distance color difference formula in RGB color space

YANG Zhen-ya¹，WANG Yong²，YANG Zhen-dong³，WANG Cheng-dao¹

1.College of Information，East China Normal University，Shanghai 200241，China
2.Department of Computer Science，Fudan University，Shanghai 200433，China
3.College of Electrical and Power Engineering，Taiyuan University of Technology，Taiyuan 030024，China

Received:2008-09-02 Revised:2008-11-13 Online:2010-02-21 Published:2010-02-21
Contact: YANG Zhen-ya

RGB颜色空间的矢量-角度距离色差公式

杨振亚¹，王勇²，杨振东³，王成道¹

1.华东师范大学信息学院电子系，上海 200241
2.复旦大学计算机科学系，上海 200433
3.太原理工大学电气与动力工程学院，太原 030024

通讯作者: 杨振亚

Abstract

Abstract: 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 importance 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.

Key words: color quantization, color difference, color space, color component, dynamic clustering

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。

关键词: 颜色量化, 色差, 颜色空间, 颜色分量, 动态聚类

CLC Number:

TP391

YANG Zhen-ya¹，WANG Yong²，YANG Zhen-dong³，WANG Cheng-dao¹. Vector-Angular distance color difference formula in RGB color space[J]. Computer Engineering and Applications, 2010, 46(6): 154-156.

杨振亚¹，王勇²，杨振东³，王成道¹. RGB颜色空间的矢量-角度距离色差公式[J]. 计算机工程与应用, 2010, 46(6): 154-156.

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Vector-Angular distance color difference formula in RGB color space

RGB颜色空间的矢量-角度距离色差公式

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