发明名称 |
System and method of reducing aliasing in printed images |
摘要 |
The system and method reduces aliasing which is formed by the patterns that are introduced by the halftone screens used in the printer. The system and method provides halftone-specific anti-alias filters for obtaining optimal effective resolution in printed images. A method of reducing aliasing in a digital image includes providing a digital image; selecting a halftone screen for halftoning the digital image, wherein the halftone screen has a directional component associated with it; filtering the digital image with an antialiasing filter, the antialiasing filter having been designed to have a directional frequency response that is optimized for the directional component of the selected halftone screen; and halftoning the filtered digital image. <IMAGE> |
申请公布号 |
EP1431911(A3) |
申请公布日期 |
2004.07.07 |
申请号 |
EP20030029011 |
申请日期 |
2003.12.16 |
申请人 |
XEROX CORPORATION |
发明人 |
HAINS, CHARLES M.;KANG, SANG-CHUL |
分类号 |
G06T5/00;G06T5/20;H04N1/405;H04N1/409;(IPC1-7):G06T5/00 |
主分类号 |
G06T5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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