发明名称 |
Segmentation method and system for multiple raster content (MRC) representation of documents |
摘要 |
A method and a system for separating an image signal into a set of image planes. The system comprises a min-max module, a dynamic threshold module and a separation module. The min-max module receives the image signal, searches for a minimum and maximum within at least one window centered on a current pixel in the image signal. The dynamic threshold module computes, for the window, based on the respective minimum and maximum received from the min-max module and the current pixel, a respective indicator representing the distance and direction of the current pixel relative to a respective threshold plane, and outputs a control signal based on the indicator. The separation module separates the image signal into the set of image planes in accordance with the control signal by including a representation of the current pixel in at least one of the image planes. <IMAGE> |
申请公布号 |
EP1380992(B1) |
申请公布日期 |
2005.12.28 |
申请号 |
EP20030014957 |
申请日期 |
2003.07.01 |
申请人 |
XEROX CORPORATION |
发明人 |
CURRY, DONALD J.;KLETTER, DORON;NAFARIEH, ASGHAR |
分类号 |
H04N1/40;G06K9/20;G06K9/34;G06K9/38;G06K9/46;G06K9/50;G06T5/00;G06T7/60;H04N1/46;H04N1/54;H04N1/58 |
主分类号 |
H04N1/40 |
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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