发明名称 |
Method of and apparatus for generating high-resolution bilevel image data. |
摘要 |
<p>A bilevel original is read in the form of multi-gradation image data stored as 3 by 3 pixels n a latch circuit (4). An ROM (5) stores data of bilevel image patterns higher in resolution than the multi-gradation image data. The stored data are related to every combination of gradation values of a central pixel in 3 by 3 image regions and data patterns of peripheral pixels thereof. The image data stored in the latch circuit (4) are supplied as an address input to the ROM (5), which in turn outputs corresponding high-resolution bilevel image pattern data.</p> |
申请公布号 |
EP0481962(A2) |
申请公布日期 |
1992.04.22 |
申请号 |
EP19920100766 |
申请日期 |
1986.10.09 |
申请人 |
DAINIPPON SCREEN MFG. CO., LTD. |
发明人 |
KITAMURA, HIDEAKI |
分类号 |
H04N1/40;G06T5/20;H04N1/405 |
主分类号 |
H04N1/40 |
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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