[PDF][PDF] A novel watermarking method using hadamard matrix quantization

PW Adi, P Arsiwi - J. ICT Res. Appl, 2020 - perpustakaan.unaja.ac.id
One of the most used watermarking algorithms is Singular Value Decomposition (SVD),
which has a balanced level of imperceptibility and robustness. However, SVD uses a …

A practical algorithm for completing half-Hadamard matrices using LLL

A Goldberger, Y Strassler - Journal of Algebraic Combinatorics, 2022 - Springer
A (classical) partial Hadamard Matrix is an m * nm× n matrix H with values in {-1, 1\}-1, 1
such that HH^ T= nI_m HHT= n I m. If m= nm= n, we say that H is a (full) Hadamard Matrix. In …

Fast and Robust Watermarking Method using Walsh Matrix Partition

PW Adi, P Arsiwi - 2019 International Seminar on Research of …, 2019 - ieeexplore.ieee.org
In the research of watermarking algorithm, the Singular Value Decomposition (SVD) is
widely use. It has the capability of maintaining the imperceptibility and robustness at a good …

[HTML][HTML] Pseudococyclic partial Hadamard matrices over Latin rectangles

RM Falcón, V Álvarez, MD Frau, F Gudiel, MB Güemes - Mathematics, 2021 - mdpi.com
The classical design of cocyclic Hadamard matrices has recently been generalized by
means of both the notions of the cocycle of Hadamard matrices over Latin rectangles and …