发明授权
- 专利标题： Processing method for the rotation of an image
- 专利标题（中）： 用于旋转图像的处理方法
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申请号： US613189申请日： 1984-05-23
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公开(公告)号： US4618991A公开(公告)日： 1986-10-21
- 发明人: Kuniaki Tabata , Haruo Takeda
- 申请人： Kuniaki Tabata , Haruo Takeda
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX58-89119 19830523; JPX58-204826 19831102
- 主分类号： G06T3/60
- IPC分类号： G06T3/60 ; G06K9/32
摘要：
A signal rotation processing method for transforming an original image expressed on two-dimensional orthogonal coordinates into an image rotated by an arbitrary angle of .theta. radians. In order to raise the transforming speed, the method includes a skew coordinate transformation step of multiplying the original coordinates of the image elements by a matrix of ##EQU1## and an enlarging/reducing transformation step of conducting multiplication by a matrix of ##EQU2## .
公开/授权文献
- USRE36735E Self-aligned low resistance buried contact process 公开/授权日：2000-06-13
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