The optimal scaling factor based on Secant Method for image watermarking using the hybrid DTCWT-DCT domain

Authors

  • Mohamed lebcir Phd student Malysia
  • Suryanti Awang 1 Faculty of Computing, Universiti Malaysia Pahang Al-Sultan Abdullah, 26600, Pekan, Pahang, Malaysia. 2 Center of Excellence for Artificial Intelligence & Data Science, Universiti Malaysia Pahang Al-Sultan Abdullah, Lebuh Persiaran Tun Khalil Yaakob, 26300, Kuantan, Pahang, Malaysia. https://orcid.org/0000-0002-5468-1150
  • Ali Benziane Faculty of Science and Technology, University of Djelfa, Algeria. https://orcid.org/0009-0001-3222-8208

DOI:

https://doi.org/10.52866/ijcsm.2024.05.01.017

Keywords:

Watermarking, DTCWT, DCT, Differential Method, Newton’s Method, Secant Method, Scaling Factor

Abstract

This paper proposes an implementation of the secant optimization method on the watermark
embedding in DTCWT domain. An objective function combining PSNR and NC (The Normalized Correlation)
values calculated for a set of common attacks is used in the optimization process. The aim is to enhance the tradeoff between robustness and imperceptibility against the various image processing attacks via an automatic and
careful selection of the scaling factor using optimization. The watermark is inserted in the high energy bands of
DCT-transformed sub-vectors, which were generated from the DTCWT coefficient decomposition of the host
image. Experimental results performed on a set of 512×512 greyscale images, show better results than the
existing schemes for most common image attacks such as compression, low-pass filtering and noise addition.

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Published

2024-02-06

How to Cite

[1]
M. lebcir, Suryanti Awang, and Ali Benziane, “The optimal scaling factor based on Secant Method for image watermarking using the hybrid DTCWT-DCT domain”, Iraqi Journal For Computer Science and Mathematics, vol. 5, no. 1, pp. 237–262, Feb. 2024.
CITATION
DOI: 10.52866/ijcsm.2024.05.01.017
Published: 2024-02-06

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Section

Articles