Enhancing sharpness in video images

Television – Image signal processing circuitry specific to television – Transition or edge sharpeners

Reexamination Certificate

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C382S269000

Reexamination Certificate

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07847863

ABSTRACT:
A method of selectively sharpening video data may include, for at least some pixels in the video data, generating a sharpened value for a pixel value in an image. The sharpened value may be disregarded if a combination of the pixel value and the sharpened value is in a coring region. The sharpened value also may be disregarded if a combination of the pixel value and the sharpened value is a clipping region. The combination of the pixel value and the sharpened value may be output if the combination is not in the coring region or in the clipping region.

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