Bleed-Through Removal from Degraded Documents Using a Color Decorrelation Method
Identifieur interne : 001614 ( Main/Merge ); précédent : 001613; suivant : 001615Bleed-Through Removal from Degraded Documents Using a Color Decorrelation Method
Auteurs : Anna Tonazzini [Italie] ; Emanuele Salerno [Italie] ; Matteo Mochi [Italie] ; Luigi Bedini [Italie]Source :
- Lecture Notes in Computer Science [ 0302-9743 ] ; 2004.
Abstract
Abstract: A color decorrelation strategy to improve the human or automatic readability of degraded documents is presented. The particular degradation that is considered here is bleed-through, that is, a pattern that interferes with the text to be read due to seeping of ink from the reverse side of the document. A simplified linear model for this degradation is introduced to permit the application of very fast decorrelation techniques to the RGB components of the color data images, and to compare this strategy to the independent component analysis approach. Some examples from an extensive experimentation with real ancient documents are described, and the possibility to further improve the restoration performance by using hyperspectral/multispectral data is envisaged.
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DOI: 10.1007/978-3-540-28640-0_22
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