Digital watermarking has gained so much popularity as a means to solve security related issues such as easy access, authorized manipulations, illegal copying, malicious attacks and illegal reproduction of digital content. This book, Digital Image Watermarking: Chirp Z Approach provides a hands-on introduction to the use of chirp z- transform in digital watermarking. Chirp Z usage in watermarking helps in achieving a highly imperceptible and robust watermarked image.