Color management method, module, and program product, and printer using said method

摘要

A color management method, wherein a Graphics Processing Unit (GPU) is used for converting colors from a source device color space to an output device color space in accordance with predetermined color profiles of the source and output devices. The method includes the steps of storing, in the GPU, an at least three-dimensional conversion texture that specifies a color conversion table; loading input color data into the GPU; sampling the conversion texture at a position specified by the input color data, thereby to identify output color data; and outputting the output color data.

主权项

1. A color management method, wherein a Graphics Processing Unit (GPU) is used for converting colors from a source device color space to an output device color space in accordance with predetermined color profiles of the source and output devices, said method comprising the steps of:
storing, in the GPU, a first conversion texture representing an ICC color profile of the source device, a second conversion texture representing an ICC color profile of the output device, and a third conversion texture intervening between the first conversion texture and the second conversion texture; loading input color data into the GPU; sampling the input color data, in the GPU, using the first conversion texture, the second conversion texture and the third conversion texture, thereby identifying output color data, wherein the third conversion texture is device-independent and performs transformation to optimize conversion of the input color data into the output color data; and outputting the output color data.