- 专利标题: Method, system and apparatus for determining area of a pixel covered by a scalable definition for a character
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申请号: US14089073申请日: 2013-11-25
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公开(公告)号: US09779526B2公开(公告)日: 2017-10-03
- 发明人: Albert Chang , Michael Gerard McCosker
- 申请人: CANON KABUSHIKI KAISHA
- 申请人地址: JP Tokyo
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: JP Tokyo
- 代理机构: Canon USA, Inc. I.P. Division
- 优先权: AU2012258407 20121127
- 主分类号: G06T11/60
- IPC分类号: G06T11/60
摘要:
A method of determining a coverage area of a pixel covered by a scalable path definition for a character, is disclosed. An edge direction for each edge of the scalable path definition intersecting the pixel is received. A fragment area is determined for each of the intersecting edges, each of the fragment areas representing an area of the pixel located to a side of a corresponding edge. The side of the corresponding edge is selected according to a direction of the corresponding edge. The coverage area of the pixel is determined based on a sum of the fragment areas, the sum of the fragment areas having a value greater than a total area of the pixel.
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