发明申请
US20080175498A1 Method, medium and apparatus effectively compressing and restoring edge position images
有权
方法,介质和设备有效地压缩和恢复边缘位置图像
- 专利标题: Method, medium and apparatus effectively compressing and restoring edge position images
- 专利标题(中): 方法,介质和设备有效地压缩和恢复边缘位置图像
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申请号: US12007266申请日: 2008-01-08
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公开(公告)号: US20080175498A1公开(公告)日: 2008-07-24
- 发明人: Sang-jo Lee , Si-hwa Lee , Do-hyung Kim
- 申请人: Sang-jo Lee , Si-hwa Lee , Do-hyung Kim
- 申请人地址: KR Suwon-si
- 专利权人: SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人: SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人地址: KR Suwon-si
- 优先权: KR10-2007-0006308 20070119
- 主分类号: G06K9/36
- IPC分类号: G06K9/36
摘要:
Provided are an apparatus and method for effectively compressing and restoring edge areas in an image. Therefore, by predicting values of pixels positioned at each directional edge, among pixels constructing a 2×2 block in a current image, using values of neighbor pixels of the pixels positioned at each directional edge, selecting an edge mode corresponding to a directional edge in which the difference between the predicted values and actual values of the pixels is a minimum, and outputting edge mode data indicating the edge mode instead of the predicted values corresponding to the edge mode, it is possible to effectively compress edge areas in which little similarity exists between pixel values, and accordingly improve a compression rate of edge areas.