计算物理 ›› 2001, Vol. 18 ›› Issue (5): 463-466.

• 论文 • 上一篇    下一篇

彩色图像着色

唐吉玉1, 桑梓勤2, 罗中杰3   

  1. 1. 华南师范大学物理系, 广东 广州 510631;
    2. 武汉邮电科学研究院, 湖北 武汉 430074;
    3. 中国地质大学数理系, 湖北 武汉 430074
  • 收稿日期:2000-11-07 修回日期:2001-04-20 出版日期:2001-09-25 发布日期:2001-09-25
  • 作者简介:唐吉玉(1965-),女,四川安岳,讲师,硕士,从事计算机应用方面研究.

COMPUTATION FOR COLOR IMAGE RENDERING

TANG Ji-yu1, SANG Zi-qin2, LUO Zhong-jie3   

  1. 1. Department of Physics, South China Normal University, Guangzhou 510631, P R China;
    2. Wuhan Research Institute of Posts and Telecommunications, Wuhan 430074, P R China;
    3. Mathematics and Physics Department, China University of Geosciences, Wuhan 430074, P R Chian
  • Received:2000-11-07 Revised:2001-04-20 Online:2001-09-25 Published:2001-09-25

摘要: 讨论了彩色图像着色的数值计算方法,即根据场景中物体表面的反射光谱能量分布来计算视觉响应的三刺激值.首先用线性模型来逼近物体表面的反射光谱连续函数,然后用高斯积分法、黎曼求和法进行了数值计算,最后把计算出来的三刺激值转化为色品坐标,在色品图上与CCD相机拍摄的图像进行了匹配

关键词: 彩色图像着色, 线性模型, 数值计算, 色品图

Abstract: The numerical computional method for color image rendering,which aims to calculate the tristimulus values of vision responses from the surface reflecting spectral power distribution in the scene,is presented.The linear model is exploited to approximate the reflecting continuous spectrum of the object surface and the numerical computation is conducted via Gaussian quadrature (GQ) and Riemannian summation (RS).The tristimulus values are converted to chromatic coordinates which match the images captured by CCD camera.

Key words: color image rendering, linear model, numerical computation, chromatic diagram

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