Development of the algorithm of video image adaptation to spectral power distribution of illuminants

Authors

DOI:

https://doi.org/10.15587/1729-4061.2019.156491

Keywords:

spectrum, adaptation, color rendering, color perception, assessment, metrology, video applications, video communication, CAM16

Abstract

Proposals for further progress of video technologies, issues that need to be resolved to implement this progress and possible ways to implement them in real devices of special and general application are made. It is proposed to supplement the conventional model of the video path with a color perception model and an adaptive model of the spectral power distribution of the illuminant. Attention is paid to the end devices of the video path, which may introduce unacceptable changes in the transmitted video information, namely color. The schemes of the algorithm of adaptation to the spectral power distribution of the illuminant are presented. The possibility of universal use of the proposed algorithm in video transmission systems is considered. The algorithm of video image adaptation to the spectral power distribution of illuminants based on the selection of reference spectral power distributions with the given color coordinates is proposed. The algorithm of allocation of the spectral power distribution of the illuminant from the overall image scene is presented. Metrological support to assess the influence of the illuminant on the quality of color rendering is proposed. It is proposed to use spectral color distributions, the set of which is presented in the paper, as optical test images for testing the color rendering quality. Comparative characteristics with existing sets of spectral power distributions are presented and it is shown that they are not enough to implement the proposed algorithm. The simulation results prove the necessity and advantages of using the proposed algorithm. The image after the application of the algorithm is such if it was observed in sunlight, regardless of what type of lighting was used during shooting or observation. In addition, the presented algorithm allows adaptation to the spectral power distribution of various illuminants, such as incandescent lamps, fluorescent, LED, signal flares, and the like

Author Biography

Volodymyr Pyliavskyi, O. S. Popov Odessa National Academy of Telecommunications Kuznechna str., 1, Odessa, Ukraine, 65029

PhD

Department of Television and Radio Broadcasting

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Published

2019-02-13

How to Cite

Pyliavskyi, V. (2019). Development of the algorithm of video image adaptation to spectral power distribution of illuminants. Eastern-European Journal of Enterprise Technologies, 1(9 (97), 58–67. https://doi.org/10.15587/1729-4061.2019.156491

Issue

Vol. 1 No. 9 (97) (2019): Information and controlling system

Section

Information and controlling system

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Copyright (c) 2019 Volodymyr Pyliavskyi

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