4 citations · 7 across the 7 of their papers we have counts for
7 papers
A new approach for image compression using normal matrices
E. Kokabifar, G. B. Loghmani, A. Latif
In this paper, we present methods for image compression on the basis of eigenvalue decomposition of normal matrices. The proposed methods are convenient and self-explanatory, requi…
Digital image watermarking using normal matrices
E. Kokabifar, G. B. Loghmani, A. Latif
This paper presents techniques for digital image watermarking based on eigenvalue decomposition of normal matrices. The introduced methods are convenient and self-explanatory, achi…
On the distance from a weakly normal matrix polynomial to matrix polynomials with a prescribed multiple eigenvalue
E. Kokabifar, G. B. Loghmani, P. J. Psarrakos
Consider an matrix polynomial . An upper bound for a spectral norm distance from to the set of matrix polynomials that have a given scalar $μ…
On the distance from a matrix polynomial to matrix polynomials with prescribed distinct eigenvalues
E. Kokabifar, G. B. Loghmani, P. J. Psarrakos +1
Consider an matrix polynomial and a set consisting of distinct complex numbers. In this paper, a (weighted) spectral norm distance from to t…
On the distance from a normal matrix polynomial to the set of matrix polynomials with a prescribed multiple eigenvalue
Esmaeil Kokabifar, Ghasem Barid Loghmani
This paper concerns the bounds for spectral norm distance from a normal matrix polynomial to the set of matrix polynomials that have as a multiple eigenvalue. Also const…
On the distance from a matrix polynomial to matrix polynomials with two prescribed eigenvalues
Esmaeil Kokabifar, G. B. Loghmani, A. M. Nazari +1
Consider an matrix polynomial . A spectral norm distance from to the set of matrix polynomials that have a given scalar as a…