Abstract
The world we live in has evolved to a state where information and knowledge have become power. Media consumption has increased drastically with the introduction of high-speed and affordable internet services. However, the internet is not the paradise that we dream of, it is a double-edged sword that contains information as well as misinformation. Hence, the question of authenticity arises. Determining the authenticity of multimedia content has attracted the attention of several researchers. Out of these authentication algorithms, one popular area is digital watermarking, which uses watermarks to attain robustness against malicious, manipulative attacks that might destroy the authenticity of multimedia content. This chapter presents a comprehensive analysis of such recent techniques involving watermarking that help in establishing the authenticity of images, audio, and videos. A wide variety of methods for watermarking have been chosen, namely, discrete wavelet transform, singular value decomposition, quantum index modulation, LSB substitution, and some others. The performance of the techniques has been evaluated using several metrics when subjected to common attacks.
