发明名称 |
System and method for primary-matched color gamut mapping |
摘要 |
This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, to map color of an input image pixel to a corresponding device element of a display device capable of displaying a plurality of device primary colors associated with the display element. The color mapping method includes dividing the display color gamut associated with the display device into a plurality of segments including a plurality of display colors. The input color gamut is also divided into a plurality of segments corresponding to the plurality of segments of the display color gamut. The color mapping further includes identifying a segment of the input color gamut including the image pixel color; determining a corresponding segment of the display color gamut; and assigning a display color that is a weighted combination of the colors included in the determined segment of the display color gamut. |
申请公布号 |
US9489919(B2) |
申请公布日期 |
2016.11.08 |
申请号 |
US201514597982 |
申请日期 |
2015.01.15 |
申请人 |
QUALCOMM MEMS Technologies, Inc. |
发明人 |
Wang Shen-Ge;Cai Songhe;Ma Jian Jim |
分类号 |
G09G5/02;G09G5/06 |
主分类号 |
G09G5/02 |
代理机构 |
Knobbe Martens Olson & Bear LLP |
代理人 |
Knobbe Martens Olson & Bear LLP |
主权项 |
1. An apparatus comprising: a display device including a reflective display element capable of displaying N device primary colors associated with a display color gamut divided into N-2 segments, Wherein a number of the N primary colors is greater than or equal to six; and a computing device capable of communicating with the display device, the computing device capable of processing image data including a plurality of image pixels with each image pixel associated with an input image pixel color represented as a combination of different input primary colors associated with an input color gamut divided into N-2 segments, each of the N-2 segments of the display color gamut corresponding to one of the N-2 segments of the input color gamut, wherein the computing device is further capable of for a given image pixel: determining a tetrahedral segment of the input color gamut that includes the input image pixel color, the tetrahedral segment including a first set of image colors; determining a corresponding tetrahedral segment of the display color gamut, the display color gamut tetrahedral segment including a second set of device primary colors selected from the N device primary colors, wherein at least two image colors of the first set are perceptually similar to two corresponding device primary colors of the second set; calculating weights for a linear combination of the first set of image color such that the input image pixel color is a weighted combination of the first set of image colors; determining a display color by applying the calculated weights to the second set of device primary colors, the display color being a weighted combination of the second set of device primary colors; and assigning the display color to a display element of the display device that corresponds to the image pixel. |
地址 |
San Diego CA US |