| 摘要 |
Disclosed is an image processor to perform error diffusion processing to an input image of m values pixel by pixel so as to convert to n values, n being smaller than m, including: a correction section to refer to a constant area which has been converted to n values before the error diffusion processing is performed to a target pixel to be an object of the error diffusion processing, and to correct a m-valued pixel value of the target pixel based on n-valued pixel values of the pixels constituting the constant area.
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