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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。
For the SONY G520 color cathode ray tube display, the characterization accuracy of LUT method and the influence of black point on the accuracy of the characterization equation are experimentally studied. The three color-difference accuracies of CIELAB, CIE94 and CIEDE2000 are given: (CIEXYZ = 1.31 / 1.19 / 0.97) when the point intensity is large, and the characteristic points are 0.84, 0.40 and 0.42 when the black point is considered, and 1.87, 0.74 and 0.76 respectively when the black point is not considered. When the intensity of the black point is small (CIEXYZ = 0.08 / 0.10 / 0.12). In the characterization equation, the black spots were 0.87, 0.41 and 0.38 respectively, while the black spots were 1.06, 0.47 and 0.44 respectively. The experimental results show that if the display is set to have a strong black point intensity, whether the characteristic equation considers the influence of the black point on the characterization accuracy is greater; and when the intensity of the black point is small, Less affected.