Image processing circuit and method for modifying a pixel value

Details Image processing circuit and method for modifying a pixel value Image processing circuit and method for modifying a pixel value

2006-08-22

2006-08-22

Natnael, Paulos M. (Department: 2622)

Television

Image signal processing circuitry specific to television

Selective image modification

C358S003190

Reexamination Certificate

active

07095448

ABSTRACT:
An image processing circuit compares a pixel value to a threshold value and modifies the pixel value if the pixel value has a predetermined relationship to the threshold value. Alternatively, the image processing circuit generates a random number and combines the random number with a pixel value. Such image processing circuits can be used to remove artifacts such as contour artifacts from a decoded electronic image or a sequence of decoded video frames.

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