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A wavelet-based watermarking algorithm for ownership verification of digital images
Yiwei Wang1, John F Doherty, Robert E Van Dyck
1Pennsylvania State University, University Park, PA 16802, USA. ywang@chrontel.com
Summary
This study introduces a new wavelet-based digital watermarking algorithm to protect multimedia copyright. The proposed method ensures watermark invisibility, robustness, and private control for effective ownership verification.
Area of Science:
- Computer Science
- Information Security
- Digital Signal Processing
Background:
- The internet's growth facilitates multimedia access but also increases copyright infringement risks.
- Digital watermarking offers a solution by embedding copyright information within data.
Purpose of the Study:
- To identify essential features for practical digital watermarking systems focused on ownership verification.
- To propose and evaluate a novel wavelet-based digital watermarking algorithm.
Main Methods:
- Discussion of key requirements for digital watermarking systems, including perceptual invisibility, robustness, and private control.
- Development of a new watermarking algorithm utilizing wavelet transforms.
Main Results:
- Experimental results demonstrate the effectiveness of the proposed wavelet-based watermarking algorithm.
- The algorithm meets the critical requirements for practical ownership verification systems.
Conclusions:
- The developed wavelet-based digital watermarking technique is suitable for practical applications.
- The algorithm provides a robust and secure method for multimedia copyright protection.
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