Results 31 to 40 of about 54,446 (214)

High Precision DCT CORDIC Architectures for Maximum PSNR [PDF]

open access: yesInternational Journal of Advanced Computer Science and Applications, 2017
Cet article propose deux architectures optimales DCT (Discrete Cosine Transform algorithm) basées sur Cordic Loeffler : une architecture DCT rapide et de faible puissance et une architecture DCT PSNR élevée. Les paramètres de rotation des angles CORDIC requis pour ces architectures ont été calculés à l'aide d'un script Matlab. Ce script permet de faire
Imen Ben   +6 more
openaire   +2 more sources

Design and Development of a Multiobjective Cost Function for Robust Video Watermarking Using Wavelet Transform

open access: yesJournal of Intelligent Systems, 2017
Watermarking is the process of concealing the secret message into multimedia sources, such as audio, image, and video. Rather than other steganography, video watermarking is mainly focused on the robustness of the system.
Wagdarikar Amir M.U., Senapati Ranjan K.
doaj   +1 more source

ROI coding of volumetric medical images with application to visualisation [PDF]

open access: yes, 2003
This paper presents region of interest (ROI) coding of volumetric medical images with the region itself being three dimensional. An extension to 3D-SPIHT which allows 3D ROI coding is proposed.
Agrafiotis, D, Bull, DR, Canagarajah, CN
core   +2 more sources

Image Compression Based on Block SVD Power Method

open access: yesJournal of Intelligent Systems, 2019
In recent years, the important and fast growth in the development and demand of multimedia products is contributing to an insufficiency in the bandwidth of devices and network storage memory.
Asnaoui Khalid El
doaj   +1 more source

Pengamanan Pesan pada Steganografi Citra dengan Teknik Penyisipan Spread Spectrum

open access: yesJurnal Elkomika, 2019
ABSTRAK Pada studi ini, dilakukan penggabungan metode - metode untuk memperkuat dan meningkatkan sisi keamanan proses pertukaran informasi atau pesan digital.
SOFIA SAIDAH   +2 more
doaj   +1 more source

Hybrid hiding in multimedia files [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2012
The principle of hybrid information hiding represented by process of information hiding  message (multimedia files) embedded inside another message which is depended on hiding a certain media in another media using different domains (special domain ...
Farah Mohammed
doaj   +1 more source

CT and MRI Medical Image Fusion Using Discrete Wavelet Transform

open access: yesCumhuriyet Science Journal, 2019
In these days, using medical image is very important inhospitals. These medical images give a lot of data about human body for exampleComputed Tomography (CT) identifies the bone structure, Magnetic ResonanceImage (MRI) image gives information about ...
Saeid Karamzadeh, Molham Moshantat
doaj   +1 more source

Chaotic Watermarking for Authentication [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2013
This research concerns with generating and hiding invisible chaotic watermarking, in a manner different from that used in the rest of the known watermarks, has been presented.
Melad Saeed
doaj   +1 more source

A Multiple Criteria-Based Cost Function Using Wavelet and Edge Transformation for Medical Image Steganography

open access: yesJournal of Intelligent Systems, 2018
With the ever-increasing need for concealing messages within cover media like image, video, and audio, numerous attempts have been developed for steganography.
Nipanikar S.I., Hima Deepthi V.
doaj   +1 more source

Steganografi Video Digital dengan Algoritma LSB (Least Significant Bit) dan Rijndael

open access: yesJournal of Innovation Information Technology and Application, 2020
Steganography is the science and art of hiding information so that confidential information cannot be known by others, except the sender and receiver. This research is designed to create a steganography system on video with mp4 format.
Imam Riadi, Sunardi Sunardi, Dwi Aryanto
doaj   +1 more source

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