Circuitry for image processing
First Claim
Patent Images
1. A method, comprising:
- increasing color saturation of RGB (red, green, blue) values of pixels of an image by,calculating a luminance value (Y) based on RGB values of a first pixel;
calculating a first maximum increase (SFmaxH) of color saturation based on a highest of said RGB values and on said luminance value;
calculating a second maximum increase (SFmaxL) of color saturation based on a lowest of said RGB values and on said luminance value;
increasing the color saturation of said first pixel in the RGB color space based on said first and second maximum increases; and
modifying the increased color saturation of the first pixel in the RGB color space based on a modification defined in the HSV (Hue, Saturation, Value) color space.
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Abstract
A method of increasing the color saturation of the RGB values of at least one pixel of an image, the method involving: calculating a luminance value based on RGB values of a first pixel; calculating a first maximum increase of said color saturation based on the highest of said RGB values and on said luminance value; calculating a second maximum increase of said color saturation based on the lowest of said RGB values and on said luminance value; and increasing the color saturation of said first pixel based on said first and second maximum increases.
25 Citations
33 Claims
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1. A method, comprising:
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increasing color saturation of RGB (red, green, blue) values of pixels of an image by, calculating a luminance value (Y) based on RGB values of a first pixel; calculating a first maximum increase (SFmaxH) of color saturation based on a highest of said RGB values and on said luminance value; calculating a second maximum increase (SFmaxL) of color saturation based on a lowest of said RGB values and on said luminance value; increasing the color saturation of said first pixel in the RGB color space based on said first and second maximum increases; and modifying the increased color saturation of the first pixel in the RGB color space based on a modification defined in the HSV (Hue, Saturation, Value) color space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A non-transitory computer-readable medium whose contents configure one or more processing devices to increase color saturation of RGB (red, green, blue) values of pixels of an image by performing a method, the method comprising:
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calculating a luminance value (Y) based on RGB values of a first pixel; calculating a first maximum increase (SFmaxH) of color saturation based on a highest of said RGB values and on said luminance value; calculating a second maximum increase (SFmaxL) of color saturation based on a lowest of said RGB values and on said luminance value; increasing the color saturation of said first pixel in the RGB color space based on said first and second maximum increases; and modifying the increased color saturation of the first pixel in the RGB color space based on a modification defined in the HSV (Hue, Saturation, Value) color space. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. An apparatus, comprising:
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one or more memories; and image processing circuitry configured to process pixels of an image, the processing including; determining a first maximum increase of color saturation of a pixel of the image based on a highest of RGB (red, green, blue) values of the pixel and a luminance value of the pixel; determining a second maximum increase of color saturation of the pixel based on a lowest of said RGB values and on said luminance value; increasing a color saturation of the pixel in the RGB color space based on the first and second maximum increases of color saturation; and modifying the increased color saturation of the pixel in the RGB color space based on a modification defined in the HSV (Hue, Saturation, Value) color space. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A system, comprising:
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means for calculating a first maximum increase (SFmaxL) of color saturation of a pixel of an image based on a highest of RGB values of the pixel and on a luminance value of the pixel; means for calculating a second maximum increase (SFmaxL) of color saturation based on a lowest of said RGB values and on said luminance value; means for increasing a color saturation of the pixel in the RGB color space based on said first and second maximum increases of color saturation; and means for modifying the increased color saturation of the first pixel in the RGB color space based on a modification defined in the HSV (Hue, Saturation, Value) color space. - View Dependent Claims (31, 32, 33)
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Specification