发明名称 Color Model Look-Up Table Generation
摘要 The conversion of RAW data captured by a camera can have artifacts in smoothness of various hues for varying chroma. To optimize smoothness and color accuracy, transform coefficients defining conversion of a standard color model to a target color model are determined. The RAW data is converted to data in a standard color model and the data in the standard color model is converted to data in the target color model using the transform coefficients. The process is repeated for various lightness levels and combined into a look up table to efficiently convert RAW data to data in the target color model for various lightness levels.
申请公布号 US2015271398(A1) 申请公布日期 2015.09.24
申请号 US201414521460 申请日期 2014.10.22
申请人 GoPro, Inc. 发明人 Chawla Sumit;Edwards Elizabeth Torres;Chen Ying
分类号 H04N5/232;H04N9/69;H04N9/64;H04N9/04 主分类号 H04N5/232
代理机构 代理人
主权项 1. A computer-implemented method comprising: accessing a set of standard points in a standard color model; determining a set of components of each point in the set of standard points; receiving preference information for tuning the set of components; determining a set of target points for each point in the set of standard points based on the preference information, the set of target point in a target color model; determining transform coefficients for each pair of standard point and corresponding target point based on the preference information; accessing a set of RAW points in a RAW color model; converting the set of RAW points to a second set of standard points in the standard color model; and converting the second set of standard points to a set of optimized points in the target color model using the transform coefficients.
地址 San Mateo CA US