Design And Research Of Information Hiding Algorithm Based On Multi-wavelet And Color Space

The rapid development of Internet technology has greatly facilitated the dissemination and use of information.The popularization of all kinds of transmission technology and cloud storage technology makes more and more multimedia information such as video,audio,pictures stored and transmitted on the network.Although the way of information transmission is diversified,which makes it more and more convenient and fast,the security of information transmission is always a difficult problem to be solved.In the past,people mainly used encryption to encrypt information and easy to be screened by attackers to destroy.Information hiding technology can target such phenomena effectively.It makes full use of people's inertia thinking and sensory blind zone,hides the encrypted information in the redundant section of the carrier information,and then transmits the information technically and visually.The whole process can effectively improve the security of information transmission.Based on multiwavelet and color space,this dissertation focuses on the research of information hiding process using digital image as information transmission carrier,in which the selection and design of information hiding region and the embedding rules of information hiding are studied.Finally,information hiding is realized by two-dimensional code coding.The research results are as follows:An information hiding algorithm based on CL multiwavelet and YUV color space for two-dimensional code coding.The image carrier is transformed by CL multiwavelet,and then transformed by YUV color space.Finally,the information needed to be encrypted is transformed into QR code and embedded into the carrier information.(2)Information hiding algorithm based on GHM multiwavelets and YUV color transfer.The image carrier is transformed by GHM multiwavelet,and then processed by YUV color space conversion.Finally,the information needed to be encrypted is scrambled and embedded into the carrier by color transfer.(3)The performance of the two information hiding methods is analyzed respectively,and tested by invisibility,robustness,perceptual usurp modification is excellent,invisibility,robustness and other performance indicators are good.Through the above research results and conclusions,it provides effective technical support and theoretical guidance for the implementation of information hiding technology.It is a valuable attempt to apply multiwavelet and color space processing methods to information hiding field.