Spiral-Based Notch Filtering for Robust Invisible Watermark Removal

Dhanush D., Hariharan S., V. C. Ranganayaki

2025

Abstract

Digital watermarking is a commonly used method of hiding invisible multimedia information to ensure copyright protection, authenticity, and data integrity. However, the recent breakthroughs in watermark removal attacks greatly compromise the security and reliability of digital watermarking methods. Traditional methods like filtering, compression, and transformation- based removal methods invariably fail to remove watermarks perfectly without sacrificing the visual image quality of the original image. Among them, notch filtering has been a commonly used tool based on the ability to selectively attenuate the frequency components where watermarks are hidden. Unfortunately, traditional notch filters contain static filtering that cannot adapt to the varying spatial and frequency signatures of watermark patterns, and hence misses some sections or distorts images severely. In this paper, we present an original Spiral-Based Notch Filtering (SBNF) method for avoiding such pitfalls and optimizing the watermark removal process with minimal image quality impairment. In the novel approach, we adopt a dynamic spiral path in the frequency domain for selective attenuation of watermark frequency components while removing spurious distortions in the original image with maximum efficiency. Based on the adaptive nature of filtering principles, the SBNF process facilitates accurate watermark removal with image fidelity preservation. Experimental validations establish the novelty of the method by offering higher watermark removal effectiveness, image quality preservation, and processing efficiency compared to its traditional counterpart.

Paper Citation

in Harvard Style

D. D., S. H. and Ranganayaki V. (2025). Spiral-Based Notch Filtering for Robust Invisible Watermark Removal. In Proceedings of the 1st International Conference on Research and Development in Information, Communication, and Computing Technologies - ICRDICCT`25; ISBN 978-989-758-777-1, SciTePress, pages 413-419. DOI: 10.5220/0013930700004919

in Bibtex Style

@conference{icrdicct`2525,
author={Dhanush D. and Hariharan S. and V. Ranganayaki},
title={Spiral-Based Notch Filtering for Robust Invisible Watermark Removal},
booktitle={Proceedings of the 1st International Conference on Research and Development in Information, Communication, and Computing Technologies - ICRDICCT`25},
year={2025},
pages={413-419},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0013930700004919},
isbn={978-989-758-777-1},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 1st International Conference on Research and Development in Information, Communication, and Computing Technologies - ICRDICCT`25
TI - Spiral-Based Notch Filtering for Robust Invisible Watermark Removal
SN - 978-989-758-777-1
AU - D. D.
AU - S. H.
AU - Ranganayaki V.
PY - 2025
SP - 413
EP - 419
DO - 10.5220/0013930700004919
PB - SciTePress