Watermarking algorithm for image based on generalized signcryption and DWT technique
Minqing Zhang · Computer Engineering and Applications Journal · 2007
This paper proposes a watermarking algorithm based on generalized signcryption and DWT.The algorithm not only can perform signcryption quickly for watermark,but also can encrypt or sign it separately when needed,which greatly improves the security and flexibility of digital watermarking.At the same time,owing to the HVS characteristics of human eyes are considered,the algorithm's robustness and adaptability have been ensured.The experiments have demonstrated that the proposed algorithm has advantages such as strong robustness against various image processing and attacks,not requiring the original image for watermarking detection,and good security.