A blind and irreversible approach to nd and irreversible approach to watermarking medical image in the spatial domaine

Abstract

As information and communication technology continues to evolve, the major problem remains how to exchange data over the Internet while preserving their integrity and confidentiality against various attacks. In this context, several IT solutions based on access control techniques exist but they remain insufficient, hence the emergence of digital watermarking as a complementary solution in order to contribute to the security of images shared on the network. The objective of our work is the development of a digital image watermarking algorithm. The information to be inserted is data related to the image, the insertion of the mark is performed in the spatial domain. The inserted mark must however respect two fundamental constraints: imperceptibility and indelibility. The contribution of digital watermarking is the security of the images; it is necessary to ensure that the mark does not degrade the visual quality. In this sense, we wish to provide a optimal coding approach that aims to guarantee the performance trade-off between embedding capacity, imperceptibility and robustness of the watermarking images. In order for a digital watermarking to be effective it must be robust, imperceptible and statistically invisible.