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New alteration detecting technique for printed documents using dot pattern watermarking.
Masahiko Suzaki
Yasuhiro Mitsui
Masayuki Suto
Published in:
Security and Watermarking of Multimedia Contents (2003)
Keyphrases
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printed documents
document images
document analysis
character recognition
keyword spotting
document processing
pattern recognition
optical character recognition
information retrieval
language independent
data mining
computer vision
document image analysis