阴极射线管显示器特性化精度及黑点的影响  

Accuracy of Colorimetric Characterization and Effect of Black Point for CRT Monitor

作　　者：石俊生[1] 云利军[1] 杨健[1] 余鸿飞[1] 王艳芳[1] 

机构地区：[1]云南师范大学颜色科学与图像信息研究所,昆明650092

出　　处：《光学学报》2007年第2期371-376,共6页Acta Optica Sinica

基　　金：国家自然科学基金(60368001);云南省科技厅基金(2004A0027M);教育厅自然科学基金(03Y318D)资助课题

摘　　要：对SONY G520彩色阴极射线管显示器,实验研究了查找表(LUT)方法的特性化精度以及特性化方程是否考虑黑点对精度的影响,给出了CIELAB,CIE94和CIEDE2000三种色差精度:在黑点强度较大时(CIEXYZ=1.31/1.19/0.97),特性化方程中考虑黑点时分别是0.84,0.40和0.42,不考虑黑点时分别是1.87,0.74和0.76;在黑点强度较小时(CIEXYZ=0.08/0.10/0.12),特性化方程中考虑黑点时分别是0.87,0.41和0.38,不考虑黑点时分别是1.06,0.47和0.44。实验结果说明,显示器设置在黑点强度较大的情况下,特性化方程是否考虑黑点对特性化精度的影响较大;而在黑点强度较小时,特性化方程是否考虑黑点对精度的影响较小。The accuracy of colorimetric characterization using the look-up table （LUT） method and effect of the black point were studied, and experiments were performed on a colorful CRT monitors of SONY G520. The experimental accuracy of characterization is presented as three kinds of color difference units of CIELAB, CIE94 and CIEDE2000： （1）0.84, 0.40 and 0.42 at considering the black point, and 1.87, 0.74 and 0.76 at not considering one in the characterization equation when the intensity of the black point is larger （i. e. CIE XYZ= 1.31/1.19/0.97 in experiments） ; （2） 0.87, 0.41 and 0.38 at considering the black point, and 1.06, 0.47 and 0.44 at not considering one when the intensity of the black point is smaller（CIE XYZ=0. 08/0.10/0.12）. This result denotes that whether the effect of the black point should be considered in the characterization equation is related to the intensity of the black point. When the intensity is stronger （weaker） its effect on the accuracy of colorimetric characterization is larger （smaller）.

关 键 词：色度学 颜色特性化 查找表方法 黑点 阴极射线管显示器 

分 类 号：O432.3[机械工程—光学工程]