1 April 2003 One-dimensional neighborhood forming strategy for fragile watermarking
Author Affiliations +
Abstract
It is recognized that block-wise dependence is a key requirement for fragile watermarking schemes to thwart vector quantization attack. It has also been proved that dependence with deterministic or limited context is susceptible to transplantation attack or even simple cover-up attacks. In this work, we point out that traditional nondeterministic block-wise dependence is still vulnerable to cropping attacks and propose a 1-D neighborhood forming strategy to tackle the problem. The proposed strategy is then implemented in our new fragile watermarking scheme, which does not resort to cryptography and requires no a priori knowledge about the image for verification. To watermark the underlying image, the gray scale of each pixel is adjusted by an imperceptible quantity according to the consistency between a key-dependent binary watermark bit and the parity of a bit stream converted from the gray scales of a secrete neighborhood formed with the 1-D strategy. The watermark extraction process works exactly the same as the embedding process, and produces a difference map as output, indicating the authenticity and integrity of the image.
© (2003) Society of Photo-Optical Instrumentation Engineers (SPIE)
Chang-Tsun Li, Chang-Tsun Li, Fong-Man Yang, Fong-Man Yang, } "One-dimensional neighborhood forming strategy for fragile watermarking," Journal of Electronic Imaging 12(2), (1 April 2003). https://doi.org/10.1117/1.1557156 . Submission:
JOURNAL ARTICLE
8 PAGES


SHARE
RELATED CONTENT

Fragile watermarking using the VW2D watermark
Proceedings of SPIE (April 08 1999)
VQ/DCT-based robust image watermarking
Proceedings of SPIE (May 11 2006)
Color space generation of multizone image analyzers
Proceedings of SPIE (January 20 1994)
Data hiding in angle quantization
Proceedings of SPIE (July 31 2001)
Watermarking scheme for authentication of compressed image
Proceedings of SPIE (November 18 2003)

Back to Top