Display the CIE 1931 color chromaticity diagram with digital image processing

Hong-Dong Zhao; Yi-Yang Yao; Fei Sun; Qin Zhang; Xiao-Hui Yang

doi:10.1117/12.2033411

19 December 2013 Display the CIE 1931 color chromaticity diagram with digital image processing

Hong-Dong Zhao, Yi-Yang Yao, Fei Sun, Qin Zhang, Xiao-Hui Yang

Proceedings Volume 9045, 2013 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Processing Technology; 904510 (2013) https://doi.org/10.1117/12.2033411
Event: International Conference on Optical Instruments and Technology (OIT2013), 2013, Beijing, China

Abstract

The chromaticity diagram is also needed in the instrument of a non-contact system for measuring color of printed material. The purpose of this paper is to design the color chromaticity diagram identical with the CIE 1931 and its program in MATLAB with digital image processing is realized. The chromaticity diagram in a binary format representation as black and white is used and the boundary for every color is confined by a closed black real line. More than 20 kinds of colors are selected by the psychophysiology of vision according to the CIE 1931 and their values in RGB are also are given. After every region colors are put in, the closed black real lines are wiped away and their values of RGB are updated according to the value for the nearest color region. The program including the filters in RGB space run until the all steps between every two colors up to the psychophysiology of vision, the chromaticity diagram is obtained. The values of RGB in every position in the chromaticity diagram can be presented.

Citation Download Citation

Hong-Dong Zhao, Yi-Yang Yao, Fei Sun, Qin Zhang, and Xiao-Hui Yang "Display the CIE 1931 color chromaticity diagram with digital image processing", Proc. SPIE 9045, 2013 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Processing Technology, 904510 (19 December 2013); https://doi.org/10.1117/12.2033411

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