| 摘要 |
A color image edge enhancement method having the following steps: Firstly, divide a color image into four color planes with the Cyan, Magenta, Yellow, and Black color (CMYK) respectively. Next, implement the halftone processing of the four respective color planes, thus generate four halftone images of the four CYMK colors. Then, compare the dotting patterns of the edge pixels to be enhanced and the pixels in its perimeter in the halftone images of the respective color planes with the patterns in an edge enhancement table, to search and obtain a dotting table and its corresponding dotting command having the most matching pattern. Finally, compare the dotting table and the corresponding dotting command having the most matching patterns with the contents of a dotting command corresponding table, to search and obtain the actual dotting command, and then execute the actual dotting commands thus obtained in dotting the edge pixel.
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