Patent ID: 7965302
Filing Date: 2011-06-21
Classification: G09G,H04N

Abstract:
1. A gamma conversion system applied to a source of image pixel data, each image pixel data in the source of image pixel data having an M-bit pixel value with a first gamma exponent, M being an integer larger than 1, the gamma conversion system comprising: a storage module therein storing I look-up tables, I being an integer larger than 1; a processing module, coupled to the source of image pixel data and the storage module respectively, the processing module comprising I converting modules which each corresponds to one of the I look-up tables; and a selecting module, coupled to the source of image pixel data and the processing module respectively, the selecting module generating a selection signal according to the M-bit pixel value; wherein in response to the selection signal, the processing module assigns one of the I converting modules to convert the M-bit pixel value, the assigned converting module converts 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, wherein N is an integer larger than 1.