| 摘要 |
A system and method of processing an error diffusion half-tone image, which produces a halftone image in accordance with a continuous-tone image. The continuous tone image consists of a two-dimension array of pixels (i, j), where i, j indicate i-th row and j-th column of the image. The method includes: (A) selecting a threshold as a k-th color threshold in accordance with a value of a k-th color of a pixel (i, j); (B) comparing the value of the k-th color of the pixel (i, j) and the k-th color threshold; (C) outputting a bi-level value associated with the k-th color of the pixel (i, j) in accordance with a comparison result produced in step (B); (D) determining an error between the k-th color value of the pixel (i, j) and the bi-level value; (E) diffusing the error to k-th colors of pixels adjacent to the pixel (i, j).
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