An Information Hiding Algorithm Based on SVD and DWT

Summarized the shortages of already information hiding algorithm based on singular value decomposition (SVD). A kind of new hiding arithmetic which combines the singular value decomposition (SVD)and discrete wavelet transform (DWT) is presented. We used DWT transform to obtain the low frequency sub-image of the host image. The secret message is embedded in low frequency sub-image by singular value decomposition. The experimental results indicate that this arithmetic can achieve the request of digital image information hiding. It also has upper performance in invisible and capability of embedded information. At the same time, the results of experiment also show that this algorithm is strong robust enough in with-standing cutting attack, JPEG compression, various noises and rotation.