提出了在彩色联合变换相关中， 使用光栅对彩色图像进行分通道处理的方法， 讨论了实现此方法对光源、滤色片的限制， 并基于此讨论提出了一种使用三色光栅图像编码的分通道解决方法。实验的结果表明， 这种方法不但降低了对光源的限制， 而且对取向不同的功率谱也便于进行分通道并行处理， 包括并行地使用零级功率谱进行彩色图像的仅形状相关。 This paper proposes a method of sub-channel color image processing using raster in color joint transformation. The limitations of the method for light source and color filter are discussed. Based on the discussion, a method of encoding three-color raster image Sub-channel solution. The experimental results show that this method not only reduces the light source limitation, but also facilitates the parallel processing of sub-channels for power spectra with different orientations, including shape-dependent correlation of color images in parallel using zero-order power spectrum.