色域映射方法和装置
By using color gamut mapping methods and devices, and through precise color gamut adjustment, the problems of outline and fading are solved, the accuracy of color reproduction is improved, and smooth conversion between different color gamuts is achieved.
CN114446215BActive Publication Date: 2026-07-17LX SEMICON CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- LX SEMICON CO LTD
- Filing Date
- 2021-10-29
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing technologies suffer from contouring and fading issues in color gamut mapping, resulting in low color accuracy, especially during conversions between different color gamuts.
Method used
By employing color gamut mapping methods and devices, and through steps such as color space conversion, hue angle calculation, hue axis selection, parameter calculation, saturation and hue control, the color gamut is precisely adjusted to prevent outline and fading phenomena and improve color accuracy.
Benefits of technology
It effectively prevents outline and fading phenomena, improves the accuracy of color reproduction, and ensures smooth transitions between different color gamuts.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN114446215B_ABST
Abstract
本公开涉及色域映射方法和装置。色域映射方法可包括：由颜色空间转换器将第一三色信号转换为第一亮度分量和一对第一色度分量并输出第一亮度分量和一对第一色度分量；由饱和度控制器使用饱和度控制器的饱和度增益来控制各个控制区域的第一色度分量的饱和度并输出第二色度分量；由色调控制器控制各个控制区域的第二色度分量的色调并输出第三色度分量；由总控制器使用第一三色信号之间的灰度差对亮度增益的设定值进行插值，通过使用插值的亮度增益控制第一亮度分量来输出第二亮度分量，并且通过根据第一三色信号的亮度值控制第三色度分量的饱和度来输出第四色度分量；由颜色空间逆转换器将第四色度分量和第二亮度分量逆转换为第二三色信号。
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