Adaptive pre-OCR cleanup of grayscale document images.
Ilya ZavorinEugene BorovikovMark TurnerLuis HernándezPublished in: DRR (2006)
Keyphrases
- document images
- gray scale
- camera captured document
- optical character recognition
- binary images
- document image analysis
- gray scale images
- printed documents
- color images
- mathematical morphology
- grayscale images
- page layout
- morphological operations
- document processing
- inverse halftoning
- document analysis
- scanned images
- document image retrieval
- scanned documents
- gray level
- document image understanding
- word spotting
- page segmentation
- ocr systems
- connected components
- structuring elements
- printed text
- error diffusion