Binarization of Badly Illuminated Document Images through Shading Estimation and Compensation.
S. J. LuChew Lim TanPublished in: ICDAR (2007)
Keyphrases
- document images
- scanned document images
- document image analysis
- document analysis
- image binarization
- shape from shading
- document image understanding
- light source
- printed documents
- binarization method
- document processing
- document image retrieval
- mathematical formulas
- page segmentation
- language identification
- surface normals
- computer vision
- single image
- scanned documents
- point light source
- page layout
- optical character recognition
- comparative evaluation
- image analysis