Ternary Entropy-Based Binarization of Degraded Document Images Using Morphological Operators.
T. Hoang Ngan LeTien D. BuiChing Y. SuenPublished in: ICDAR (2011)
Keyphrases
- document images
- morphological operators
- ocr systems
- mathematical morphology
- optical character recognition
- document image analysis
- document analysis
- image binarization
- colour images
- spatially variant
- gray scale
- structuring elements
- binarization method
- page layout
- document image understanding
- connected operators
- printed documents
- morphological filters
- document processing
- scanned document images
- document image retrieval
- multiscale
- word spotting
- morphological operations
- motion blur
- co occurrence