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    • 10. 发明申请
    • Apparatus and method for image processing of digital image pixels
    • 数字图像像素的图像处理装置和方法
    • US20060279755A1
    • 2006-12-14
    • US11447432
    • 2006-06-06
    • Laurent BlondeDidier DoyenJurgen Stauder
    • Laurent BlondeDidier DoyenJurgen Stauder
    • H04N1/60
    • H04N1/6052
    • A method for image processing of digital image pixels. Pixels are preferably filtered spatially and dithered, and the value for at least one colour component is bit reduced. The space freed by the bit reduction is used to allocate a look-up table selection bit that indicates which look-up table (LUT), from a plurality of small LUTs partitioned from a bigger LUT, should be used for the colour transform. The transformed pixels are then selected according to the used LUT, format converted and output. The invention, which also covers an apparatus and a pre-processing module, enables an apparatus with a LUT to be used both as a single full-rate LUT apparatus and as a lower-rate n smaller LUT apparatus.
    • 一种用于数字图像像素的图像处理的方法。 像素优选在空间上进行滤波和抖动,并且对于至少一种颜色分量的值进行比特降低。 通过比特缩减释放的空间用于分配查询表选择位,该查询表选择位指示来自应用于较大LUT的多个小LUT的哪个查找表(LUT)应该用于颜色变换。 然后根据所使用的LUT选择转换的像素,转换和输出格式。 本发明也涵盖了一种装置和预处理模块,使得具有LUT的装置既可以用作单个全速率LUT装置,也可以用作较低速率的n个更小的LUT装置。