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Image processing apparatus and image processing method that can print an image in which a pattern or sweeping phenomenon specific to the error diffusion process does not appear
Image processing apparatus and image processing method that can print an image in which a pattern or sweeping phenomenon specific to the error diffusion process does not appear
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机译:可以打印图像的图像处理设备和图像处理方法,其中没有出现特定于误差扩散过程的图案或扫掠现象
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摘要
In order to vary a threshold value for performing an error diffusion process depending on a pixel position, a threshold value matrix configured to have pluralities of rows and columns is prepared. In this case, pieces of data in the threshold value matrix are arrayed such that average values in the respective rows and average values in the respective columns are almost the same value. If such a threshold value matrix is used to perform the error diffusion process, the dot sparseness and denseness do not occur with a period of the matrix, and therefore the pattern or sweeping phenomenon specific to the error diffusion can be suppressed.
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