Enhancement of historical printed document images by combining Total Variation regularization and Non-local Means filtering.
Laurence Likforman-SulemJérôme DarbonElisa H. Barney SmithPublished in: Image Vis. Comput. (2011)
Keyphrases
- document images
- total variation regularization
- denoising
- optical character recognition
- image denoising
- scanned documents
- historical documents
- total variation
- scanned images
- image binarization
- printed text
- image processing
- noise removal
- document analysis
- image deblurring
- printed documents
- image enhancement
- denoising algorithm
- locally adaptive
- page layout
- augmented lagrangian
- natural images
- denoising methods
- document image retrieval
- parameter selection
- frequency domain
- text lines
- median filter
- mathematical expressions
- word spotting
- character recognition
- noisy images
- partial differential equations
- hough transform
- wavelet coefficients
- multiresolution