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OCR binarization and image pre-processing for searching historical documents.
Maya R. Gupta
Nathaniel P. Jacobson
Eric K. Garcia
Published in:
Pattern Recognit. (2007)
Keyphrases
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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historical documents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