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US 7,924,292 B2Granted
Device and method for reducing visual artifacts in color images
AssigneeBroadcom Corporation
InventorsEric Bujold, Robert Grant
Life of this patent
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AssigneeBroadcom Corporation
InventorsEric Bujold, Robert Grant
Estimating the term…
A circuit and method for reducing artifacts in decoded color video and images are disclosed. The circuit includes a buffer for receiving an input pixel in a first color-space, and a detector for determining after transformation into a second color-space, if at least one component of the transformed pixel would fall outside a predetermined range. The determination may be made by comparing components of the input pixel, to corresponding ranges in the first color-space. Upon determining that at least one component of the transformed pixel would be outside a corresponding predetermined bound in the second color-space, the detector causes the circuit to output a pixel in the first color-space, with at least one predetermined component. The output of the circuit may subsequently be converted to the second color-space by an external color-space converter and displayed onto a color display. The method reduces visible artifacts caused by clipping during color-space conversion.
A circuit comprising a buffer for receiving an input pixel in a first color-space, and a detector, said buffer in communication with said detector, said detector determining if a pixel formed by transforming said input pixel into a second color-space comprises at least one component outside a corresponding predetermined bound in said second color-space, said circuit outputting an output pixel in said first color-space with at least one predetermined component upon said determining.
A display adapter comprising:
A method of processing an input pixel by a display adapter comprising:
A method comprising:
Dependencies are inferred from the claim text.