OCR binarization and image pre-processing for searching historical documents.
Maya R. GuptaNathaniel P. JacobsonEric K. GarciaPublished in: Pattern Recognit. (2007)
Keyphrases
- preprocessing
- post processing
- document images
- historical documents
- image data
- image features
- input image
- image classification
- gray scale images
- image content
- scanned documents
- image preprocessing
- image retrieval
- multiscale
- image representation
- template matching
- image analysis
- image collections
- image segmentation
- feature extraction
- handwritten document images
- handwriting recognition
- lighting conditions
- high resolution
- image regions
- edge detection
- printed documents
- hough transform