色外观匹配的多光谱图像再现

doi:10.3969/j.issn.1001-2400.2011.04.021

J4 ›› 2011, Vol. 38 ›› Issue (4): 118-123.doi: 10.3969/j.issn.1001-2400.2011.04.021

色外观匹配的多光谱图像再现

罗雪梅¹;曾平¹;王莹²;郑海红¹

(1. 西安电子科技大学计算机外部设备研究所，陕西西安 710071；
2. 西安邮电学院计算机学院，陕西西安 710061)

收稿日期:2010-12-22 出版日期:2011-08-20 发布日期:2011-09-28
通讯作者: 罗雪梅
作者简介:罗雪梅(1982-)，女，西安电子科技大学博士研究生，E-mail: luoxuemei@xidian.edu.cn．
基金资助:
国家部委“十一五”预研资助项目(51316060203);国家部委预研基金资助项目(9140A16050109DZ01);中央高校基本科研业务费资助项目(72104969); 国家自然科学基金资助项目(61070045)

Multi-spectral image reproduction with color appearance matched

LUO Xuemei¹;ZENG Ping¹;WANG Ying²;ZHENG Haihong¹

(1. Research Inst. of Computer Peripherals, Xidian Univ., Xi'an 710071， China;
2. School of Computer Science, Xi 'an Youdian Univ., Xi'an 710061， China)

Received:2010-12-22 Online:2011-08-20 Published:2011-09-28
Contact: LUO Xuemei

摘要/Abstract

摘要：

针对多光谱图像再现过程中由于观察条件变化引起再现图像与源图像色外观不一致的问题，提出一种基于色外观匹配的多光谱图像再现算法．首先，在源端引入色外观变换，得到源光谱反射率图像在源观察条件下的色外观描述; 然后，建立逆向模型，估计目的观察条件下的高维光谱，使得估计光谱与源光谱在观察条件改变时达到色外观匹配;最后，为同时提高再现多光谱图像的光谱精度，以源光谱为标准，采用同色异谱校正方法对估计光谱进行校正，得到变观察条件下与源多光谱图像色外观相匹配、光谱逼近的再现图像．试验结果表明，在源与目的观察条件不同的情况下，再现图像与源图像间的感知色差及光谱误差均较小，在保持源多光谱图像光谱信息的基础上，实现了等观感再现．

关键词: 色彩管理, 多光谱图像再现, 色外观匹配, 光谱估计, 同色异谱校正

Abstract:

To solve the problem that different viewing conditions results in different color appearances between a reproduced image and its original one during multi-spectral image reproduction, a new algorithm based on color appearance mapping for multi-spectral image reproduction is presented. Firstly, through the introduction of color appearance transformation, the color appearance description of the source spectral reflectance under the source viewing condition is obtained. Then through the construction of the reverse model, high dimensionality spectra under the destinated viewing condition is estimated. Finally, to improve the spectral precision of the reproduced image, based on the source spectra, the estimated spectra are corrected by the method of metameric correction, and the reproduced spectral image is obtained, which is mapped in color appearance and approached in spectral accuracy with the original image under the variable viewing condition. Experiments show that the perceptual color difference and the spectral inaccuracy between the reproduced multi-spectral image and its original one under different viewing conditions are small, the new method preserves the spectral information on the source spectra, and achieves equal perceptual reproduction.

罗雪梅;曾平;王莹;郑海红. 色外观匹配的多光谱图像再现[J]. J4, 2011, 38(4): 118-123.

LUO Xuemei;ZENG Ping;WANG Ying;ZHENG Haihong. Multi-spectral image reproduction with color appearance matched[J]. J4, 2011, 38(4): 118-123.

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色外观匹配的多光谱图像再现

Multi-spectral image reproduction with color appearance matched

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