System and method for local value adjustment
First Claim
1. A method for local value adjustment, comprising:
- identifying a hue, saturation, and brightness value for each pixel of an image;
determining whether the hue and saturation for each pixel fall within a first predetermined set of hue and saturation combinations;
determining whether the brightness value for each pixel of the image falls within a predetermined set of brightness values;
selectively applying a gain to the saturation of each pixel based upon the determination of whether the hue and saturation value of the pixel falls within the first predetermined set of hue and saturation combinations, and the determination of whether the brightness value of the pixel falls within the predetermined set of brightness values;
decimating the image into multiple localized regions;
determining a mean brightness value for each localized region;
determining whether the hue and saturation for each pixel fall within a second predetermined set of hue and saturation combinations; and
selectively increasing the perceived contrast of the image around the mean brightness value for each localized region by applying a transfer function to each pixel of the image based upon the determination of whether the hue and saturation of the pixel fall within the second predetermined set of hue and saturation combinations.
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Accused Products
Abstract
In accordance with the teachings of the present invention, a system and method for local value adjustment are provided. In one embodiment, the method includes identifying a hue, saturation, and brightness value for each pixel of an image, determining whether the hue and saturation for each pixel fall within a first predetermined set of hue and saturation combinations, determining whether the brightness value for each pixel of the image falls within a predetermined set of brightness values, and selectively applying a gain to the saturation of each pixel based upon the determination of whether the hue and saturation value of the pixel falls within the first predetermined set of hue and saturation combinations and the determination of whether the brightness value of the pixel falls within the predetermined set of brightness values. The method further comprises decimating the image into multiple localized regions, determining a mean brightness value for each localized region, determining whether the hue and saturation for each pixel fall within a second predetermined set of hue and saturation combinations, and selectively increasing the perceived contrast of the image around the mean brightness value for each localized region by applying a transfer function to each pixel of the image based upon the determination of whether the hue and saturation of the pixel fall within the second predetermined set of hue and saturation combinations.
27 Citations
20 Claims
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1. A method for local value adjustment, comprising:
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identifying a hue, saturation, and brightness value for each pixel of an image;
determining whether the hue and saturation for each pixel fall within a first predetermined set of hue and saturation combinations;
determining whether the brightness value for each pixel of the image falls within a predetermined set of brightness values;
selectively applying a gain to the saturation of each pixel based upon the determination of whether the hue and saturation value of the pixel falls within the first predetermined set of hue and saturation combinations, and the determination of whether the brightness value of the pixel falls within the predetermined set of brightness values;
decimating the image into multiple localized regions;
determining a mean brightness value for each localized region;
determining whether the hue and saturation for each pixel fall within a second predetermined set of hue and saturation combinations; and
selectively increasing the perceived contrast of the image around the mean brightness value for each localized region by applying a transfer function to each pixel of the image based upon the determination of whether the hue and saturation of the pixel fall within the second predetermined set of hue and saturation combinations. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for local value adjustment, comprising:
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decimating an image into multiple localized regions;
determining a mean brightness for each localized region; and
selectively increasing a perceived contrast of the image around the mean brightness for each localized region. - View Dependent Claims (9, 10, 11, 12)
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13. A system for local value adjustment, comprising:
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an image decimation module operable to decimate an image into multiple localized regions and determine a local mean brightness value for each localized region;
an image interpolation module operable to resize the decimated image to an original resolution of the image; and
a local transfer function module operable to selectively increase the perceived contrast of the image around the mean brightness value for each localized region. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification