Method and System for Performing Image Mark Recognition
- Author(s):
- Cichielo, Robert; Hoffman, Jeffrey A.
- Patent Issued:
- Nov 20, 2007
- Patent Number:
- 7,298,902
- Source:
- ETS Patent
- Document Type:
- Patent
- Family ID:
- 34750087
- Subject/Key Words:
- Patent, Active Patent, Image Processing, Mark Recognition, Document Scanning, Digital Images
Abstract
A method and system for performing image mark recognition for a document is disclosed. A document is scanned into a digital image. Reference image marks are sensed from the digital image. The reference image marks may include trigger row marks and/or corner/crop marks. Coordinates denoting the location of cells within the digital image are determined based on the locations of the reference image marks. Response marks are evaluated for darkness, opacity, and/or grayness on a pixel-by-pixel basis. The response marks are each assigned a percentage value based on the ratio between a total color value for a cell and a maximum color value for a cell.