Method for generating a gamma table

mmmmA method for generating a gamma table is provided. The method is applied to a display, and the display obtains n-bit corrected gray levels [y(1), . . . , y(2)] from m-bit original gray levels [x(1), . . . , x(2)] by using the gamma table, wherein m and n are positive integers. The method compris...

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Bibliographic Details
Main Authors Ko, Ming-Chun, Wen, Shang-Chieh, Li, Chien-Hsin
Format Patent
LanguageEnglish
Published 08.03.2011
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Summary:mmmmA method for generating a gamma table is provided. The method is applied to a display, and the display obtains n-bit corrected gray levels [y(1), . . . , y(2)] from m-bit original gray levels [x(1), . . . , x(2)] by using the gamma table, wherein m and n are positive integers. The method comprises calculating the corrected gray levels [y(1), . . . , y(2)] corresponding to the original gray levels [x(1) , . . . , x(2)] according to a gamma curve; and successively calculating differences of two adjacent corrected gray levels (y(i+1)−y(i)) and recording the differences as a plurality of gamma reference values z(i+1) (i=1˜(2m−1)) corresponding to the original gray levels x(i+1), in which the value z(1) corresponding to x(1) is y(1), in order to generate the gamma table.