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公开(公告)号:US08837825B2
公开(公告)日:2014-09-16
申请号:US14198470
申请日:2014-03-05
Applicant: Dolby Laboratories Licensing Corporation
Inventor: Guan-Ming Su , Sheng Qu , Hubert Koepfer , Yufei Yuan , Samir Hulyalkar , Walter Gish
IPC: G06K9/36 , H04N19/186 , H04N19/105 , G06T5/50 , G06T5/00 , H04N19/136 , H04N19/36
CPC classification number: G06T5/50 , G06T5/009 , H04N1/6027 , H04N19/105 , H04N19/136 , H04N19/186 , H04N19/36
Abstract: Inter-color image prediction is based on color grading modeling. Prediction is applied to the efficient coding of images and video signals of high dynamic range. Prediction models may include a color transformation matrix that models hue and saturation color changes and a non-linear function modeling color correction changes. Under the assumption that the color grading process uses a slope, offset, and power (SOP) operations, an example non linear prediction model is presented.
Abstract translation: 彩色图像预测是基于颜色分级建模的。 预测应用于高动态范围的图像和视频信号的有效编码。 预测模型可以包括对色相和饱和度颜色变化进行建模的颜色变换矩阵和非线性函数建模颜色校正变化。 在颜色分级过程使用斜率,偏移和功率(SOP)操作的假设下,呈现示例非线性预测模型。