DCT-domain Blind Detection Watermarking Algorithm

摘要

The digitization of information medium not only provides great convenience for the access of information, but also evidently improves the efficiency and accuracy of information expression. Especially with the development of modern net-communication technique, the exchange and transmission of data becomes very easy. The paper proposes a new image watermarking algorithm - DCT-domain binary image watermarking algorithm. The algorithm is a blind detection algorithm without the needs of host primary image in the process of extracting watermark. The added watermarking information has good invisibility. And it has better anti- attack capability on JPEG attack of watermarking attack method.