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A new public-key authentication watermarking for binary document images resistant to parity attacks
Hae Yong Kim;
Image Processing, 2005. ICIP 2005. IEEE International Conference on
Volume 2,
11-14 Sept. 2005
Page(s):II
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1074-7
Abstract:
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.
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