Gamma conversion system

Details Gamma conversion system Gamma conversion system

2011-06-21

2011-06-21

Caschera, Antonio A (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

C345S589000, C345S590000, C345S600000, C345S602000, C348S254000, C382S167000

Reexamination Certificate

active

07965302

ABSTRACT:
The invention provides a Gamma conversion system applied on a source of image pixel data. Each image pixel data in the source of image pixel data has an M-bit pixel value with a first Gamma exponent. The Gamma conversion system comprises a storage module, a processing module, and a selecting module. The storage module therein stores I look-up tables. The processing module is respectively coupled to the source of image pixel data and the storage module, and the processing module comprises I converting modules, each of the converting modules corresponds to one look-up table. The selecting module is coupled to the source of image pixel data and the processing module respectively, and generates a selection signal according to the M-bit pixel value. In response to the selection signal, the processing module assigns one of the converting modules to convert the M-bit pixel value into an N-bit pixel value with a second Gamma exponent according to the look-up table corresponding to the assigned converting module.

REFERENCES:
patent: 6965389 (2005-11-01), Masuji et al.
patent: 7002594 (2006-02-01), Yoshida et al.
patent: 7061504 (2006-06-01), Glen
patent: 7391480 (2008-06-01), Fukue et al.

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