Region-Based Watermarking by Distribution Adjustment

Authors:
Gareth Brisbane;Reihaneh Safavi-Naini;Philip Ogunbona
Affiliations:
-;-;-
Venue:
ISW '00 Proceedings of the Third International Workshop on Information Security
Year:
2000

Citing 4
Cited 1

Vector quantization and signal compression

Vector quantization and signal compression
Techniques for data hiding

IBM Systems Journal
Rotation, scale and translation invariant spread spectrum digital image watermarking

Signal Processing
Region-Based Watermarking for Images

ISW '99 Proceedings of the Second International Workshop on Information Security

An Algorithm for Data Hiding Using Median Cut Segmentation

PCM '02 Proceedings of the Third IEEE Pacific Rim Conference on Multimedia: Advances in Multimedia Information Processing

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Abstract

Watermarking typically involves adding one sequence to another to produce a new sequence containing hidden information. This method is based on modifying a distribution, obtained via segmentation, to hide information, thus allowing subsets of the distribution to still potentially reveal the watermark. We use vector quantization to segment a colour image and then shift each distribution by a random amount. The result is that we can detect a watermark without pre-processing because only comparisons between distributions are needed.