Systems and methods for image data encoding and decoding

Details Systems and methods for image data encoding and decoding Systems and methods for image data encoding and decoding

2011-05-03

2011-05-03

Ahmed, Samir A (Department: 2624)

Image analysis

Color image processing

C382S237000, C382S232000, C382S233000, C382S274000

Reexamination Certificate

active

07936917

ABSTRACT:
Image processing systems and methods are presented for encoding 8-bit color image data to 4-bit data using an encoding table by assigning a pixel type value to each 8-bit pixel according to a 9×3 tiling pattern with 9 unique pixel type values in each 3×3 window of the 9×3 tiling pattern, and for decoding the 4-bit image data based on the pixel type value and the encoded data values for neighboring pixels.

REFERENCES:
patent: 2001/0021971 (2001-09-01), Gibson et al.
patent: 2002/0057446 (2002-05-01), Long et al.
patent: 2005/0276501 (2005-12-01), Nakayama et al.

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