在这条射线上 各点的颜色是根据离 W点的距离占全部线段距离的百分比, 也就是刺激纯度(excitation purity) 来决定的。 在颜色的感知上 色 NTSC(National Television System Committee)是美国的彩色电视制式。
双语例句
1
Color quality of a color stimulus definable by its chromaticity coordinates, or by its dominant (or complementary) wavelength and its excitationpurity taken together.