Fast correction of bleed-through distortion in grayscale documents by a blind source separation technique.
Anna TonazziniEmanuele SalernoLuigi BediniPublished in: Int. J. Document Anal. Recognit. (2007)
Keyphrases
- gray scale
- blind source separation
- independent component analysis
- color images
- source separation
- grayscale images
- binary images
- document collections
- gray level
- non stationary
- blind separation
- document clustering
- information retrieval
- negative matrix factorization
- text documents
- speech signal
- information retrieval systems
- document images
- error diffusion
- source signals
- factor analysis
- principal component analysis
- image compression
- keywords
- face recognition
- image segmentation