低端数码相机的颜色特性化——基于多项式模型法  

A Study of Low-end Digital Camera Colorimetric Characterization Based on Polynomial Modeling

作　　者：柳叶[1] 邢红宏[1] 张勇[1] 余鸿飞[2] 石俊生[2] 

机构地区：[1]海军航空工程学院理化实验中心,山东烟台264001 [2]云南师范大学物理与电子信息学院,云南昆明650092

出　　处：《现代显示》2011年第7期14-17,共4页Advanced Display

摘　　要：近年来随着数字技术以及彩色数字图像输入输出设备的不断发展和广泛使用,颜色在不同的设备之间精确的传递或再现成为该领域的重要课题。文章以彩色数码相机特性化为研究内容,采用多项式转换方法,研究了多项式回归模型不同系数矩阵、不同训练样本对数码相机特性化精度的影响,得出了系数矩阵为20×3多项式模型时误差较小(2.095ΔE*ab)的结论,达到了实用水平。The camera output RGB signals do not directly corresponded to the tristimulus values based on the CIE standard colorimetric observer,i.e.,it is a device-independent color space.In this paper,digital camera colorimetric characterization based on the polynomial regression model is studied.The characterization performance is evaluated by experiment of varying coefficient matrix of polynomials and the number of training samples.The results show that the better polynomial matrix is 20×3,and the mean color difference between the reproduced colors and target colors is 2.095ΔE＊ab,which can be applied in common application.

关 键 词：彩色数码相机 颜色特性化 麦克贝斯色卡 多项式模型 

分 类 号：TN873.93[电子电信—信息与通信工程]