1 citations · 1 across the 3 of their papers we have counts for
8 papers
A hybrid chaos map with two control parameters to secure image encryption algorithms
Roghayeh Hosseinzadeh, Yavar Khedmati, Reza Parvaz
In this paper, we introduce a hybrid chaos map for image encryption method with high sensitivity. This new map is sensitive to small changes in the starting point and also in contr…
Four-dimensional hybrid chaos system and its application in creating a secure image transfer environment by cellular automata
R. Parvaz, Y. Khedmati, Y. Behroo
One of the most important and practical researches which has been considered by researchers is creating secure environments for information exchanges. Due to their structures, chao…
Properties of bounded representations for -frames
Fatemeh Ghobadzadeh, Yavar Khedmati, Javad Sedghi Moghaddam
Due to the importance of frame representation by a bounded operator in dynamical sampling, researchers studied the frames of the form , which b…
Fibonacci representations of sequences in Hilbert spaces
J. Sedghi Moghaddam, A. Najati, Y. Khedmati
Dynamical sampling deals with frames of the form , where belongs to certain classes of linear operators and . The pur…
g-frame representations with bounded operators
Yavar Khedmati, Fatemeh Ghobadzadeh
Dynamical sampling, as introduced by Aldroubi et al., deals with frame properties of sequences of the form , where belongs to Hilbert space $\h…
2D Hybrid chaos map for image security transform based on framelet and cellular automata
Y. Khedmati, R. Parvaz, Y. Behroo
In this paper, we provide some safe ways to transfer images securely by using cryptography and steganography methods. In order to enhance the security of the image transmission, we…