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HDR WIDE COLOR GAMUT VIDEO CONVERSION DEVICE AND HDR WIDE COLOR GAMUT VIDEO CONVERSION METHOD FOR CONVERTING HDR VIDEO TO SDR VIDEO
HDR WIDE COLOR GAMUT VIDEO CONVERSION DEVICE AND HDR WIDE COLOR GAMUT VIDEO CONVERSION METHOD FOR CONVERTING HDR VIDEO TO SDR VIDEO
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机译：将HDR视频转换为SDR视频的HDR宽屏彩色视频转换装置和HDR宽屏彩色视频转换方法
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摘要
To solve a problem of how to handle a gamut error caused by tone mapping when a tone mapping process and a gamut mapping process are separated.SOLUTION: An HDR wide color gamut video converter that converts an HDR video to an SDR video includes a tone mapping processing unit that performs tone mapping (TM) processing on a luminance value Y of Yxy color system image data in an input HDR image and outputs a luminance value Y', and a gamut mapping processing unit that performs gamut mapping processing on the luminance value Y' output from the tone mapping processing unit and a x'y' value obtained by converting a color gamut xy in the input HDR image into an oblique coordinate system using a three-dimensional lookup table (3DLUT) and outputs the values as RGB data.SELECTED DRAWING: Figure 1
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