电子学报 ›› 2015, Vol. 43 ›› Issue (6): 1108-1112.DOI: 10.3969/j.issn.0372-2112.2015.06.011

• 学术论文 • 上一篇    下一篇

电子地图色域映射的SOM神经网络方法

吴明光, 郑培蓓, 崔丽丽   

  1. 南京师范大学虚拟地理环境教育部重点实验室, 江苏南京 210046
  • 收稿日期:2014-01-10 修回日期:2014-06-26 出版日期:2015-06-25
    • 作者简介:
    • 吴明光 男,1979年3月15日生于湖北武汉,副教授,主要研究方向为电子地图与地理信息系统. E-mail:wmg@njnu.edu.cn郑培蓓 女,1988年1月17日生于安徽含山, 博士研究生,主要研究方向为地理信息系统. E-mail:zhengpeibei@163.com
    • 基金资助:
    • 国家自然科学基金 (No.41271446,No.41271384)

Gamut Mapping of Electronic Map Based on SOM Neural Network

WU Ming-guang, ZHENG Pei-bei, CUI Li-li   

  1. Key Laboratory of Virtual Geographic Environment, Ministry of Education, Nanjing Normal University, Nanjing, Jiangsu 210023, China
  • Received:2014-01-10 Revised:2014-06-26 Online:2015-06-25 Published:2015-06-25
    • Supported by:
    • National Natural Science Foundation of China (No.41271446, No.41271384)

摘要:

颜色的设备相关性导致电子地图在跨媒介再现时容易出现色彩变形以及地理信息错误传输等问题.本文分析了电子地图色域的特征,提出了一种基于SOM(Self-Organizing Maps)神经网络的色域映射方法.针对神经网络方法没有顾及电子地图色域映射过程中的色彩空间权重以及神经网络中邻域函数的各向同性假设不适用于地图色域这两个问题,提出了改进方法.将本文方法与ICC(International Color Consortium)感知再现、绝对色度再现色域映射方法进行了对比,结果表明本文方法能够很好的保持地图整体色差,能够提高电子地图颜色复制精度.

关键词: 电子地图, 色彩, 色域映射, 神经网络

Abstract:

Device-dependency of color introduces such problems as color distortion and error geographic information transmission when electronic maps represent in multiple-medias.Based on the analysis of the characteristics of map gamut, a gamut mapping method based on SOM(Self-Organizing Maps) neural network is proposed.In this method, the weight factor of map color is considered and the neighborhood function, which is anisotropic in map color, is modified.The experiments indicate that our proposed method performs better than the ICC(International Color Consortium) perceptual intent and absolute colorimetric intent on keeping overall color difference.This method can also improve the reproduction accuracy of electronic map colors.

Key words: electronic map, color, gamut mapping, neural network

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