"Security-Enhanced Digital Image Watermarking for Copyright Protection" by Chaturvedi Rekha is an insightful book that focuses on the application of digital watermarking techniques for copyright protection of digital images. The book provides a detailed understanding of various watermarking techniques and their effectiveness against different types of attacks. The author also emphasizes the importance of security in digital watermarking and its relevance to real-world scenarios. The book covers different aspects of digital watermarking, including image authentication, ownership verification, and tamper detection. The author also discusses various watermarking attacks, such as geometric attacks, compression attacks, and signal processing attacks. The book presents a thorough analysis of these attacks and their effects on different watermarking techniques. Furthermore, the book provides an in-depth understanding of advanced watermarking techniques such as robust watermarking, blind watermarking, and semi-fragile watermarking. The author also highlights the role of deep learning in improving the efficiency of watermarking techniques. This book is an essential read for researchers, professionals, and students who are interested in digital watermarking, image processing, and information security. It presents a comprehensive overview of digital watermarking techniques and their practical applications in copyright protection.