发明名称 |
Method and apparatus for effecting background suppression of image data |
摘要 |
Apparatus for processing digitized images which contain useful image formation data and background features a background supression scheme used to convert each pixel value to preselected values in a smaller range in order to facilitate data processing such as compression and scaling. Provision is made for generating an adaptive or dynamic threshold value, as well as a much more stable background reference threshold value.
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申请公布号 |
US5093871(A) |
申请公布日期 |
1992.03.03 |
申请号 |
US19890419594 |
申请日期 |
1989.10.10 |
申请人 |
UNISYS CORPORATION |
发明人 |
KLEIN, ROBERT;ROPPO, ANTONETTE M.;WILLIAMS, DAVID C. |
分类号 |
G06T1/20 |
主分类号 |
G06T1/20 |
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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