Preface.- List of Figures .- List of Tables .- List of Abbreviations.- Table of Contents .- Chapter 1: Digital image watermarking: concepts and applications.- Chapter 2: Medical image watermarking techniques: a technical survey and potential challenges.- Chapter 3: Analytical study and performance evaluation of medical image watermarking techniques.- Chapter 4: Robust and imperceptible hybrid watermarking techniques for medical images.- Chapter 5: Robust and secure multiple watermarking for medical images.- Chapter 6: Secure Spread Spectrum based multiple watermarking technique for medical images.- Chapter 7: Robust and secure multiple watermarking technique for application in tele-ophthalmology.- Chapter 8: Secure multiple watermarking technique using neural networks.- Chapter 9: Securing patient data through multiple watermarking and selective encryption.- Chapter 10: State-of-the-art techniques of image watermarking: new trends and future challenges.