A Secure Semi-fragile Watermarking Algorithm for Image Authentication in the Wavelet Domain of JPEG2000

In this paper, we present a new authentication method in the wavelet domain of JPEG2000, which is robust to re-compression, resolution changes and noise. We show that, because of its bit plane oriented processing, JPEG2000 is more suitable for the integration of an authentication watermarking algorithm than JPEG. The disadvantages of JPEG-based authentication schemes are discussed. It is shown that our authentication scheme is secure in contrast to most of the authentication schemes proposed so far in the wavelet domain. The security of our authentication algorithm depends only upon hash algorithm and encryption. Since these algorithms can be updated easily in our authentication scheme, the proposed authentication algorithm will also be secure in the future.