Notes on Image Watermarking and Steganography

Abstract

Digital information can be reproduced, duplicated, and distributed easily which makes information hiding like image watermarking and steganography as powerful security techniques. Image watermarking and steganography techniques make the embedding hidden data unnoticeable where the sender’s identity is hidden by image watermarking while the existence message is concealed by image steganography. This paper gives a basic framework for image watermarking and steganography. Then it figures out some basic differences based on the existing research works on image watermarking and steganography. After then, it highlights state-of-the-art methods based on basic design requirements. Some challenges along with suggestions are given, and a future research direction is provided.