Pre-Processing of Degraded Printed Documents by Non-local Means and Total Variation.
Laurence Likforman-SulemJérôme DarbonElisa H. Barney SmithPublished in: ICDAR (2009)
Keyphrases
- total variation
- printed documents
- denoising
- preprocessing
- image denoising
- document images
- denoising algorithm
- character recognition
- document analysis
- convex optimization
- optical character recognition
- noisy images
- image processing
- image restoration
- natural images
- document image analysis
- document processing
- image deblurring
- feature extraction
- regularization term
- regularization methods
- color image restoration
- denoising methods
- motion blur
- language independent
- blind deconvolution
- degraded images
- minimization problems
- restored image
- wavelet coefficients
- partial differential equations
- machine vision
- bit rate
- multiresolution
- image analysis
- noise reduction
- split bregman