Edge noise removal in bilevel graphical document images using sparse representation.
Thai V. HoangElisa H. Barney SmithSalvatore TabbonePublished in: ICIP (2011)
Keyphrases
- sparse representation
- noise removal
- document images
- edge detection
- scanned documents
- dictionary learning
- anisotropic diffusion
- image enhancement
- sparse coding
- denoising
- noise reduction
- scanned images
- image classification
- gaussian noise
- page segmentation
- image patches
- edge information
- multiscale
- image processing
- diffusion equation
- optical character recognition
- high dimensional data
- image representation
- signal processing
- face recognition
- noisy images
- neural network
- text lines
- machine learning
- data analysis
- high resolution
- test images
- image data
- dimensionality reduction
- natural images