Gamut Mapping Algorithm for Color Signal Based on Spherical Coordinates and Triangular Interpolation

YE Cheng; LIU Zhen; WU Ming-guang

doi:10.3969/j.issn.0372-2112.2015.11.007

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Gamut Mapping Algorithm for Color Signal Based on Spherical Coordinates and Triangular Interpolation

更新时间：2025-07-16

- Gamut Mapping Algorithm for Color Signal Based on Spherical Coordinates and Triangular Interpolation
- Acta Electronica Sinica Vol. 43, Issue 11, Pages: 2180-2186(2015)
- 作者机构：
  
  1. 上海理工大学出版印刷与艺术设计学院,上海,200093
  2. 南京师范大学虚拟地理环境教育部重点实验室,江苏,南京,200046
  3. 上海理工大学出版印刷与艺术设计学院,上海,200093
  4. 南京师范大学虚拟地理环境教育部重点实验室,江苏,南京,200046
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China (No.41271446);Postgraduate Innovation Fund of Shanghai Municipality (No.JWCXSL1402)
- DOI：10.3969/j.issn.0372-2112.2015.11.007
  CLC： TP391
- Published：2015
- 稿件说明：
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YE Cheng, LIU Zhen, WU Ming-guang. Gamut Mapping Algorithm for Color Signal Based on Spherical Coordinates and Triangular Interpolation[J]. Acta Electronica Sinica, 2015, 43(11): 2180-2186.
DOI：

YE Cheng, LIU Zhen, WU Ming-guang. Gamut Mapping Algorithm for Color Signal Based on Spherical Coordinates and Triangular Interpolation[J]. Acta Electronica Sinica, 2015, 43(11): 2180-2186. DOI： 10.3969/j.issn.0372-2112.2015.11.007.

摘要

针对颜色信号在进行跨媒体传输时出现的失真问题

提出一种基于球坐标及三角形插值的色域映射算法.首先

在球坐标系内选取出目标色域的边界颜色点以作为三角形插值的节点;其次

通过插值节点预查找方法选取出3个符合插值要求的最优节点;最后

使用三角形插值计算得到待映射颜色信号对应的目标色域边界.在EPSON及HP打印机上的实验结果表明本文算法具有良好的可靠性、计算精度及执行效率

可广泛应用于各类呈色设备及彩色图像的色域映射中.

Abstract

In order to solve the distortion problem of color signal in cross media reproduction process

a gamut mapping algorithm based on spherical coordinates and triangular interpolation was proposed.Firstly

the algorithm chooses the boundary color samples of target gamut as the triangular interpolation nodes.Secondly

three optimal interpolation nodes are selected through a pre-search process.Finally

the algorithm calculates the correspondent gamut boundary point of the mapping color by triangular interpolation.The experimental results demonstrate that the algorithm has good calculation precision and efficiency

and can be used in the color mapping process of different color devices and images.

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