The way to transfer XYZ system to RGB system is introduced and the conversion of chromaticity coordinate among CIE1931? CIE1960 and CIE1976 chromaticity diagrams are discussed.

介绍色度学中三个重要的色度空间——CIE1931、CIE1960、CIE1976色度系统，及三个色度系统间色品坐标的转换方法。

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Second under the principle of mapping color stimulus spectrum to rgb color space every clustering is visualized by the chromaticity diagram of j. c. maxwell's triangle plane coordinate.

然后，采用彩色刺激光谱投影到rgb颜色空间的原理，通过色度学中麦克斯韦的三角平面坐标色度图对各聚类结果进行可视化显示。

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