An Integrated Approach for Online Secure Information Transfer Using Steganography and Watermarking with Various Performance Measures

Digital watermarking is the act of hiding a message related to a digital signal (i.e. an image, song, and video) within the signal itself. It is a concept closely related to steganography, in that they both hide a message inside a digital signal. However, what separates them is their goal. Watermarking tries to hide a message related to the actual content of the digital signal, while in steganography the digital signal has no relation to the message, and it is merely used as a cover to hide its existence. this book helps undergraduates, graduate students and research scholars related to the field of steganography and cryptography.