An authentication watermarking technique (AWT) inserts some hidden data into an image in order to detect any accidental or malicious image alteration. Recent papers have proposed some cryptography-based AWTs for binary and halftone images, but none of them seems to be well-suited for public-key authentication of binary document images. Many of the previous public-key AWTs for binary images can be assaulted by "parity attacks." This paper proposes a new AWT for binary document images that can detect any modification of the watermarked document, even a single pixel flipping. Moreover, both its secretand public-key versions are completely immune against parity attacks. Document images watermarked by the proposed technique present high visual quality, without salt-and-pepper noise.
A new public-key authentication watermarking for binary document images resistant to parity attacks
IEEE International Conference on Image Processing 2005 ; 2 ; II-1074
2005-01-01
86239 byte
Conference paper
Electronic Resource
English
A Newpublic-Key Authentication Watermarking for Binary Document Images Resistant to Parity Attacks
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