System and method for reducing discontinuity of gray level...

Details System and method for reducing discontinuity of gray level... System and method for reducing discontinuity of gray level...

2004-08-03

2009-11-10

Werner, Brian P (Department: 2624)

Image analysis

Image compression or coding

C708S551000

Reexamination Certificate

active

07616820

ABSTRACT:
A system and method for reducing discontinuity of gray level in an image buffer memory is provided, which reduces N bits to (N−k) bits for each pixel on an input image, so as to save required memory and reduce discontinuity of gray level. The input image includes a plurality of pixels in a matrix. The method includes the steps of: selecting a plurality of interleaved pixels from the input image; adding a specific value of 2k−1in the pixels selected; and deleting lower k bits for each pixel of the input image.

REFERENCES:
patent: 4589084 (1986-05-01), Fling et al.
patent: 5329475 (1994-07-01), Juri et al.
patent: 5909383 (1999-06-01), Lee
patent: 2002/0087610 (2002-07-01), Pether et al.

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