Interactive degraded document enhancement and ground truth generation

Degraded documents are frequently obtained in various situations. Examples of degraded document collections include historical document depositories, document obtained in legal and security investigations, and legal and medical archives. Degraded document images are hard to to read and are hard to analyze using computerized techniques. There is hence a need for systems that are capable of enhancing such images. We describe a languageindependent semi-automated system for enhancing degraded document images that is capable of exploiting inter- and intra-document coherence. The system is capable of processing document images with high levels of degradations and can be used for ground truthing of degraded document images. Ground truthing of degraded document images is extremely important in several aspects: it enables quantitative performance measurements of enhancement systems and facilitates model estimation that can be used to improve performance. Performance evaluation is provided usin...

• Type: Conference
• Year: 2008
• Where: DRR
• Authors: G. Bal, Gady Agam, Ophir Frieder, Gideon Frieder
• Keywords: Degraded Document, Degraded Document Collections, Degraded Document Images, Document Analysis, DRR 2008