Applications of chaotic signal processing techniques to multimedia watermarking
Nikos Nikolaidis, Sofia Tsekeridou, A. Nikolaidis, Anastasios Tefas, V. Solachidis, Ioannis Pitas · 2000
Usage of digital media has witnessed a tremendous growth during the last decades. However digital media are extremely vulnerable to copyright infringement, tampering and unauthorized distribution. Recently the protection of digital information has received significant attention within the digital media community and a number of techniques that try to address the problem by hiding appropriate information within digital media have been proposed. In this paper we present two applications of chaotic systems to watermarking of multimedia data, namely secure spatial scrambling of watermark patterns prior to their embedding in images and generation of 1-D or 2-D watermark signals. I. INTRODUCTION One of the biggest technological events of the last two decades was the invasion of digital media in an entire range of everyday life aspects. Digital audio /video/images and multimedia documents reach an ever expanding consumer base, and their domination in entertainment, arts, education etc. is j...