Sparsity-based edge noise removal from bilevel graphical document images.
Thai V. HoangElisa H. Barney SmithSalvatore TabbonePublished in: Int. J. Document Anal. Recognit. (2014)
Keyphrases
- noise removal
- document images
- edge detection
- scanned documents
- anisotropic diffusion
- image enhancement
- fourth order
- noise reduction
- document image analysis
- scanned images
- edge information
- denoising
- document analysis
- page segmentation
- edge detector
- noisy images
- edge map
- printed documents
- sparse representation
- scanned document images
- page layout
- document image retrieval
- diffusion filtering
- image processing
- text lines
- optical character recognition
- impulse noise
- pattern recognition
- document image understanding
- indian languages
- historical documents
- gaussian noise
- signal to noise ratio
- machine learning