A multiple threshold for image secret sharing based on Cauchy matrix

Image secret sharing is an important research topic in the field of information security. Compared to a lot of digital information, images are favored in the network due to having a vivid, visual characteristics. However, most image secret sharing schemes without considering the characteristics of the image just regard the image as a series of general data and directly using the common secret sharing method for data. Based on the fact that the image has a high redundancy characteristic, a multiple threshold image secret sharing scheme is proposed in this paper. The quality of the recovered image varies as the number of shares, and this program with good usability is in authority managements and other aspects.