Method and system for adaptive color and contrast for display devices
DCFirst Claim
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1. A method for adaptive color contrast of an image displayed on a display device, comprising:
- separating input data into luma and chroma components;
collecting luma distribution data;
analyzing the luma distribution data;
generating appropriate contrast control response based upon the analyzed luma distribution data;
modifying the incoming luma component based upon the contrast control response;
analyzing the modified luma component; and
generating a non-linear chroma correction factor based upon the analyzed modified luma component.
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Abstract
A method and apparatus that allows a display device to adaptively and automatically control display contrast and color is disclosed. The method and system in accordance with the present invention can be described by the following sequential process:
- 1. Separating an input image data value into its luma and chroma components.
- 2. Collecting the luma distribution data over the entire image or a specified window.
- 3. Analyzing the luma distribution.
- 4. Generating an appropriate contrast control response that modifies the input luma component to generate an output luma component, on a pixel by pixel basis.
- 5. Analyzing the input luma component and the output luma component, and an input chroma component, to generate an appropriate modification for the chroma component, on a pixel by pixel basis.
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Citations
20 Claims
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1. A method for adaptive color contrast of an image displayed on a display device, comprising:
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separating input data into luma and chroma components; collecting luma distribution data; analyzing the luma distribution data; generating appropriate contrast control response based upon the analyzed luma distribution data; modifying the incoming luma component based upon the contrast control response; analyzing the modified luma component; and generating a non-linear chroma correction factor based upon the analyzed modified luma component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 13, 14, 15, 16, 17, 18, 19, 20)
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11. Computer program product for adaptive color contrast of an image displayed on a display device, comprising:
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computer code for separating input data into luma and chroma components; computer code for collecting luma distribution data; computer code for analyzing the luma distribution data; computer code for generating appropriate contrast control response based upon the analyzed luma distribution data; computer code for modifying the incoming luma component based upon the contrast control response; computer code for analyzing the modified luma component; computer code for generating a non-linear chroma correction factor based upon the analyzed modified luma component; and computer readable medium for storing the computer code. - View Dependent Claims (12)
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Specification