Digital Image Watermarking

Abstract

Recently, with the explosive growth of Information and Communication Technologies (ICT), various new opportunities emerged for the creation and delivery of content in digital form which includes applications such as real time video and audio delivery, electronic advertising, digital libraries and web publishing. However, these advantages have the consequent risks of data piracy, which motivate towards development of new protection mechanisms. One such effort that has been attracting interest is based on digital watermarking techniques. This chapter discusses the basic concepts of digital watermarking techniques, performances parameters and its potential applications in various fields. In this chapter, we also discuss various spatial and transform domain techniques and compare the performance of some reported wavelet based watermarking techniques. Finally, the latest applications of watermarking techniques have been discussed. This chapter will be more important for researchers to implement effective watermarking method.