System and method for color retargeting
First Claim
1. A computer-implemented color system for color retargeting of an image, the system comprising:
- at least one data storage device; and
at least one processor coupled to the at least one storage device, the at least one processor being configured for;
applying a color appearance model to the image to be displayed based in part on a first luminance level, the color appearance model outputting a first set of color responses representing a simulated version of the image at the first luminance level; and
applying a color compensation model to the first set of color responses based in part on a second luminance level, the color compensation model outputting a second set of color responses representing a compensated version of the image, at least one of the color appearance model and the color compensation model applying rod-intrusion correction.
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Abstract
A system and method for color retargeting of an image includes applying a color appearance model to the image to be displayed based in part on a first luminance level. The color appearance model outputs a first set of color responses representing a simulated version of the image at the first luminance level. A color compensation model is further applied to the first set of color responses based in part on a second luminance level. The color compensation model outputs a second set of color responses representing a compensated version of the image. The compensated version of the image may be displayed on a display device set at the second luminance level. At least one of the color appearance model and the color compensation model applies rod-intrusion correction.
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Citations
28 Claims
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1. A computer-implemented color system for color retargeting of an image, the system comprising:
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at least one data storage device; and at least one processor coupled to the at least one storage device, the at least one processor being configured for; applying a color appearance model to the image to be displayed based in part on a first luminance level, the color appearance model outputting a first set of color responses representing a simulated version of the image at the first luminance level; and
applying a color compensation model to the first set of color responses based in part on a second luminance level, the color compensation model outputting a second set of color responses representing a compensated version of the image, at least one of the color appearance model and the color compensation model applying rod-intrusion correction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for color retargeting of an image, the method comprising
applying a color appearance model to the image to be displayed based in part on a first luminance level, the color appearance model outputting a first set of color responses representing a simulated version of the image at the first luminance level; - and
applying a color compensation model to the first set of color responses based in part on a second luminance level, the color compensation model outputting a second set of color responses representing a compensated version of the image, at least one of the color appearance model and the color compensation model applying rod-intrusion correction. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method of processing images, the method comprising:
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obtaining an image; applying Shin'"'"'s model to the image to generate a set of luminance dependent parameters based at least in part on scene luminance associated with the image; applying an inverse of Shin'"'"'s model to the luminance dependent parameters to approximate white point LMS values based at least in part on display luminance associated with a display onto which the image is to be shown; transforming the LMS values to generate a target image; and outputting the target image for display. - View Dependent Claims (26, 27, 28)
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Specification