A new color difference formula in RGB color space
一种新的RGB色差度量公式

Based on the study of RGB (red-green-blue) color space and the comparison and analysis of several color difference formulas in RGB color space, this paper summarized three rules of color difference in RGB color space and proposed the conception of the importance of the color component. A new color difference formula in RGB color space was achieved by dynamically adjusting the vector distance and angular between a pair of RGB colors. The dynamic coefficient was 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 better than those widely used color difference formulas in RGB color space.