Research On Image Information Hiding Technology Based On Turtle Shell Matrix

With the rapid development of information technology in modern society,information security is becoming more and more important.Image information hiding technology is an important technology applied in the field of information security.This technology usually embeds secret information into the original image,which can effectively protect the security of secret information when transmitted through the public network.So far,high capacity and image quality are the most important aspects of image information hiding.In addition,the reversibility and authentication of hidden images are also important research directions in this field.Previous traditional schemes usually have the problems of low capacity of hidden information or low image quality.In recent years,the new hiding scheme of reversible data is based on the sharing mechanism of geometric structure and secret,which can partly solve the above problems.Therefore,based on previous studies,this paper proposes three secret information hiding schemes,which can extract secret information completely and restore the original cover image without distortion.The main resarch results are as follows:(1)A secure large-capacity data hiding scheme based on Turtle Shell Reference Matrix(TSM)and Number Reference Matrix(NRM)is proposed in this paper.With the help of Number Reference Matrix and Lookup Table,a secret data hiding rule is designed,which can embed high-capacity secret data in the original cover image,and can be extracted completely and quickly in the extraction stage,and is hidden.The image is very safe.Each pair of pixels in the cover image can hide six secret bits,while keeping the average PSNR at 41.97 dB.(2)A reversible authenticated secret image sharing scheme based on tortoise shell structure(TSS)is proposed.The scheme uses visual secret sharing(VSS)to divide the secret into several shared technologies.By cooperating with these shared shares,the secret image can be restored in the future.Through the ingenious design of tortoise shell mechanism,the original image hidden in secret data can be shared into two meaningful shares with good visual effect.So the proposed TSS-VSIS scheme is reversible and provides authentication capability.This function is very important and practical,especially when the shadow image is tampered with by a malicious attacker,because it is very helpful to verify whether the share is real.(3)A visual secret sharing scheme based on Turtle Shell Structure(TSS)with reversibility and lightweight authentication is proposed.In order to improve the image quality of the shared share,the secret data is embedded into the original cover image through the design and construction of TSS,and three meaningful shadow images are generated.In addition,the embedded structure is designed at the cost of lightweight computing,withoutembedding authentication codes,and provides a strong authentication capability.The experimental results show that the scheme has good visual quality and strong discrimination ability for various gray-scale test images.