Robust Image Watermarking Using Non-Regular Wavelets

TL;DR

This paper introduces a robust digital image watermarking technique using non-regular wavelets, which enhances both image quality and resistance to lossy compression attacks like JPEG and JPEG2000.

Contribution

It proposes a novel watermarking method leveraging non-regular wavelets to improve robustness and image quality over traditional regular wavelet approaches.

Findings

Watermarked images show increased robustness against JPEG and JPEG2000 attacks.

Non-regular wavelets provide better energy spreading and image quality.

The method outperforms traditional regular wavelet-based watermarking schemes.

Abstract

An approach to watermarking digital images using non-regular wavelets is advanced. Non-regular transforms spread the energy in the transform domain. The proposed method leads at the same time to increased image quality and increased robustness with respect to lossy compression. The approach provides robust watermarking by suitably creating watermarked messages that have energy compaction and frequency spreading. Our experimental results show that the application of non-regular wavelets, instead of regular ones, can furnish a superior robust watermarking scheme. The generated watermarked data is more immune against non-intentional JPEG and JPEG2000 attacks.