发明名称 |
Graphic edge extracting apparatus |
摘要 |
A graphic edge extracting apparatus includes a memory unit for storing graphic image data and a graphic edge pixel extracting unit for developing the graphic image data on a bit plane in a bit map memory in the memory unit and executing bitblt (bit block transfer: synthesis during drawing) processing a plurality of times, thereby extracting inner edge pixels of the graphic image.
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申请公布号 |
US4955064(A) |
申请公布日期 |
1990.09.04 |
申请号 |
US19870103598 |
申请日期 |
1987.10.02 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
SHIRASAKA, AKIFUMI;SETO, KUNIO;HAMADA, MASAKI;SHIBUYA, YUKARI |
分类号 |
G06T7/60;G06T5/00 |
主分类号 |
G06T7/60 |
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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