Research On Image Steganography Algorithm

Image steganography techniques is an important branch of Information Hiding,which offers protection of Information Security by covering communication.According to the needs of image steganography work,this project achieves a covert communication with open channel for transmission by embedding Image Steganography System into the carrier,to solve the problem of causing awareness when transmitting secret information by using cryptography.The main concern of Image Steganography in this project is about the performance indicators such as steganographic capacity,embedding' distortion and security,etc.This paper researches digital image steganography,to combine information processing,pattern recognition technology and steganography and improve performance testing of current steganographic methods.First,based on numerous reference and related research background,the basic information and current research is summarized.Secondly,according to the different characteristics of embedded information of each pixel in image steganography based on pixel difference,information is embedded by simple LSB.Finally,this paper analysis DCT(Discrete Cosine Transform)and its characteristics,and discusses steganographic methods based on BPCS in DCT domain,which has good anti-steganalysis and robustness.The image steganographic method research contributesto both theoretical research and practicalapplication of information hiding technology.The researchlays the foundations for independent development network image hiding information detection system,which has positive effects for national security and social stability.