In-place averaging of packed pixel data

Details In-place averaging of packed pixel data In-place averaging of packed pixel data

2007-10-16

2011-10-11

Perungavoor, Sath V (Department: 2624)

Image analysis

Image enhancement or restoration

Image filter

C382S254000, C382S260000, C345S619000, C345S643000, C348S448000, C348S463000, C708S445000

Reexamination Certificate

active

08036484

ABSTRACT:
Methods, systems, and apparatuses for averaging data in packed format are provided. The data may be image data, such as data words containing color-specific data portions representative of pixels of a captured image. A first data word containing first image data is received. A second data word containing second image data is received. A logical AND of the first data word and the second data word is performed to generate a third data word. A logical exclusive OR (XOR) of the first data word and the second data word is performed to generate a fourth data word. A right shift of the fourth data word is performed. The third data word and the right shifted fourth data word are summed to generate a fifth data word that is an average of the first and second data words.

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Maddocks et al. “Hunt Engineering VHDL Image Processing Source Modules Reference Manual”, May 7, 2006, pp. 22, 28, 31, 33.

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