Device and method for mapping color gamut
AssigneeSamsung Display Co., Ltd.
InventorsJong-Woong Park, Yong-Seok Choi, Won-Woo Jang, Byung-Ki Chun, Joo-Hyung Lee
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Abstract
A device for mapping a color gamut includes a color gamut determinator and a color gamut mapper. The color gamut determinator determines an output color gamut using a gain value corresponding to information of a first color gamut, information of a second color gamut and a control condition. The color gamut mapper converts the color gamut of an input image data into the output color gamut. Accordingly, it is possible to provide a device and method for mapping a color gamut, which can determine an optimal color gamut corresponding to a change in control condition, and accordingly improve color accuracy and color reproducibility.
Claims6
A method of mapping a color gamut, comprising:
- receiving an input image data;
- detecting a control condition including at least one of chroma of the input image data, intensity of the input image data, multiplication of the chroma and the intensity, and external illumination degree;
- determining an output color gamut using information including lattice points of a first color gamut, information including lattice points of a second color gamut and a gain value corresponding to the control condition;
- and
- converting the color gamut of the input image data into the output color gamut, wherein lattice points of the output color gamut are computed by the following formula:
- LPo=(LP1−LP2)*G+LP2,
- wherein LPo denotes lattice points of the output color gamut, LP1 denotes lattice points of the first color gamut, LP2 denotes lattice points of the second color gamut, and G denotes a gain value.
Dependencies are inferred from the claim text.