Research on trustworthiness evaluation model for digital image in blind environment

With the emerging of various digital image process software and informatation hiding software, digital image are facing credit crisis. This paper discusses the security problem of digital image from the point of trustworthiness, and proposes the concept of digital image trustworthiness evaluation. Firstly, the digital image trustworthiness judging model and the digital image trustworthiness measuring model are proposed. The former is researched on different phases of digit image life cycle. The latter is based on hidden Markov model (HMM), and the digital image trustworthiness synthesis measuring model is proposed based on the method of fuzzy analytic hierarchy process. Digital image trustworthiness evaluation system in blind environment is further proposed. Finally, experimental results show that the digital image trustworthiness synthesis measuring model is effective.