In this paper, a new steganography method for spatial domain has been proposed, which includes a new mapping technique for the secret messages. The algorithm coverts any kinds of message to text using bit manipulation tables, applies hill cipher techniques to it and finally hides the message into red, green and blue images of a selected image.
Therefore, the proposed algorithm is a combination of encryption of the message first then hiding the message into the cover image which provides double security. The result of the proposed algorithm is analyzed and discussed using MSE, PSNR, SC, AD, MD and NAE. The histogram of the cover and stegano image is also shown.
Continue Reading
Transparent glass-ceramics, activated by luminescent species, present an important class of photonic materials because their specific optical, spectroscopic and structural properties. Several top-down and bottom-up techniques have been developed for…
Advanced modulation formats combined with digital signal processing and direct detection is a promising way to realize high capacity, low cost and power efficient short reach optical transmission system. In…
Product code is a promising technique for low as well as high SNR applications due to its superior error correction performance. Indoor video broadcasting is an application where distance between…
A method for scale length determination of Gate all around (Octagonal cross section) Junctionless Transistor is reported in this paper. The scale length expression is obtained by solving the 3D…
First numerical investigations are undertaken to analyze and compare the performance and cost of 3-level Duobinary and PAM-4 formats as candidates for high-speed next-generation PONs that support downstream 28 Gb/s…
We propose a novel 3R regenerator architecture for highly spectral efficient signals. Through numerical simulations we evaluate its performance and compare with traditional 2R schemes. The results of the analysis…
In CMOS technology, performance degradation of power is one of the foremost questions at daily vitality. In this circuit, power dissipation is increasing exponentially constantly with technology scaling down. The…
In this paper, we propose a new approach to improve face verification and person re-identification in the RGB images by leveraging a set of RGB-D data, in which we have…
In this paper we propose a queuing model for predicting behavior of an uncorrelated Rayleigh flat fading channel. Using the notion of Hyperexponential (HE) probability density function, we model a…