发明授权
US5387985A Non-integer image resolution conversion using statistically generated
look-up tables
失效
使用统计生成的查找表进行非整数图像分辨率转换
- 专利标题： Non-integer image resolution conversion using statistically generated look-up tables
- 专利标题（中）： 使用统计生成的查找表进行非整数图像分辨率转换
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申请号： US170082申请日： 1993-12-17
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公开(公告)号： US5387985A公开(公告)日： 1995-02-07
- 发明人: Robert P. Loce , Michael S. Cianciosi , R. Victor Klassen
- 申请人： Robert P. Loce , Michael S. Cianciosi , R. Victor Klassen
- 申请人地址： CT Stamford
- 专利权人： Xerox Corporation
- 当前专利权人： Xerox Corporation
- 当前专利权人地址： CT Stamford
- 主分类号： B41J2/485
- IPC分类号： B41J2/485 ; G06T3/40 ; G06T5/20 ; G09G5/00 ; G09G5/06 ; G09G5/391 ; H04N1/40 ; H04N1/409 ; G03F3/08
摘要：
The present invention is a method and apparatus for converting the resolution of bitmap images, and more specifically, to the use of a template matching process to alter the resolution of digital images for printing or similar methods of rendition. The present invention uses statistically generated templates, implemented using look-up tables, to improve document appearance upon output by converting from an original or input spatial resolution to an output spatial resolution that is device dependent, and where there is a non-integer relationship between the input and output resolutions. The resulting image signals may then be utilized to control a scanning beam where the beam varies in intensity and duration according to the pulses used to control it.
公开/授权文献
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