5 citations · 10 across the 5 of their papers we have counts for
6 papers
Image Compression with SVD : A New Quality Metric Based On Energy Ratio
Henri Bruno Razafindradina, Paul Auguste Randriamitantsoa, Nicolas Raft Razafindrakoto
Digital image compression is a technique that allows to reduce the size of an image in order to increase the capacity storage devices and to optimize the use of network bandwidth.…
Blind and robust images watermarking based on wavelet and edge insertion
Henri Bruno Razafindradina, Attoumani Mohamed Karim
This paper gives a new scheme of watermarking technique related to insert the mark by adding edge in HH sub-band of the host image after wavelet decomposition. Contrary to most of…
Compression d'images par SVD et sur-approximation des composantes de chrominance
Henri Bruno Razafindradina, Paul Auguste Randriamitantsoa, Nicolas Raft Razafindrakoto
This paper gives a new scheme of colour image compression related to singular values matrix approximation. The image has to be converted in luminance / chrominance space before bei…
Authentication System Securing Index of Image using SVD and ECC
Tahina Ezéchiel Rakotondraina, Henri Bruno Razafindradina
This paper presents a new approach to securing information stored in a database. It has three components including: an operation for indexing images using Singular Value Decomposit…
Improved Watermarking Scheme Using Discrete Cosine Transform and Schur Decomposition
Henri Bruno Razafindradina, Nicolas Raft Razafindrakoto, Paul Auguste Randriamitantsoa
Watermarking is a technique which consists in introducing a brand, the name or the logo of the author, in an image in order to protect it against illegal copy. The capacity of the…
Tatouage Robuste Et Aveugle Dans Le Domaine Des Valeurs Singulieres
Henri Bruno Rhb Razafindradina, Paul Auguste Rpa Randriamitantsoa
Digital watermarking consists on inserting a mark into an image to protect it against copies. The heaviness of the extraction procedure with the old methods urged us to look for a…