发明申请
US20140029073A1 REPAIR OR EDITING OF DAMAGED (TORN) SCANNED HALFTONE PRINTS
有权
损坏(TORN)扫描HALFTONE打印机的修复或编辑
- 专利标题: REPAIR OR EDITING OF DAMAGED (TORN) SCANNED HALFTONE PRINTS
- 专利标题(中): 损坏(TORN)扫描HALFTONE打印机的修复或编辑
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申请号: US13559866申请日: 2012-07-27
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公开(公告)号: US20140029073A1公开(公告)日: 2014-01-30
- 发明人: Shen-ge Wang , Edgar A. Bernal , Robert P. Loce
- 申请人: Shen-ge Wang , Edgar A. Bernal , Robert P. Loce
- 申请人地址: US CT Norwalk
- 专利权人: XEROX CORPORATION
- 当前专利权人: XEROX CORPORATION
- 当前专利权人地址: US CT Norwalk
- 主分类号: G03F3/08
- IPC分类号: G03F3/08
摘要:
When restoring a scanned halftone image of a damaged document, parameters of the halftone structure (geometry) are estimated, as is an intended contone gray level for damaged portions of the image. Locations of halftone cell tiles in the scanned image are determined based on the halftone structure, and a halftone profile model is generated using the estimated halftone parameters and contone information. Image segments are aligned using global features for coarse alignment and halftone structure for fine alignment, such as in cases where the scanned halftone image contains unconnected fragments. Missing parts of the damaged document image are filled in using the halftone profile model and estimated contone values.
公开/授权文献
- US09183619B2 Repair or editing of damaged (torn) scanned halftone prints 公开/授权日:2015-11-10