Abstract:Lossless information hiding technique that allows an original image after hiding in, still intact after removing confidential information stored, in order to further improve the compressed domain image information hiding method, this paper proposes a method based on hybrid substrate distortion-free image in mind information hiding technology, mainly to do the following work: the application of VQ encoding is given, SMVQ coding theory; finished basement notation based on hybrid information hiding design; application 6 512 × 512 pixel grayscale images completed experimental results demonstrate. Experimental results show that: The new method and the traditional edge matching based on vector quantization coding method, reducing the secret information embedding time, improve the secret information embedding capacity.