Abstract:

With the rapid development of computer and information technology, as the key techniques of digital image copyright protection and integrity authentication, digital watermarking has been widely studied and applied. An overview of the recent developments in image watermarking is introduced, and the main techniques of image watermarking are illustrated. We discuss the main schemes, characteristics and new development of the robust watermarking, fragile watermarking, and semifragile watermarking algorithms. Finally, the development trend of the image watermarking technology is discussed in this paper.

Key words: image watermarking;copyright protection;image authentication;algorithm evaluation