Systems and methods for improved gamut mapping from one image data set to another
First Claim
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1. A system for converting input image data in a first color space to output image data in a second color space, wherein said second color space comprises an RGBW format, said system comprising:
- a converter for calculating chroma/luma values and calculating hue angle of said input image data from a first color space;
a hue angle triangle calculator, said hue angle triangle calculator determines in which chromaticity triangle the input data resides;
a matrix multiply unit, said unit multiplying the input data with a conversion matrix selected depending upon the chromaticity triangle determination.
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Abstract
The present application discloses methods and system for converting input image data in a first color space into image data in a second color space format. Several embodiments disclose improved techiques for performing these conversions using inexpensive hardware and software implementations.
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Citations
20 Claims
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1. A system for converting input image data in a first color space to output image data in a second color space, wherein said second color space comprises an RGBW format, said system comprising:
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a converter for calculating chroma/luma values and calculating hue angle of said input image data from a first color space;
a hue angle triangle calculator, said hue angle triangle calculator determines in which chromaticity triangle the input data resides;
a matrix multiply unit, said unit multiplying the input data with a conversion matrix selected depending upon the chromaticity triangle determination. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for converting input image data in a first color space to output image data in a second color space, wherein said second color space comprises an RGBW format, the steps of said method comprising:
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calculating chroma/luma values and calculating hue angle of said input image data from a first color space;
determining which chromaticity triangle the input data resides;
multiplying the input data with a conversion matrix selected depending upon the chromaticity triangle determination. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification