A Blind Steganalysis Algorithm based on LSSVM for JPEG Image

Proposes a blind steganalysis algorithm based on LSSVM for JPEG image.The algorithm calculates a total of 12 dimensional feature vectors from each JPEG image,and using LSSVM classifier to classify cover and stego images,which can apply to blind steganalysis.The experiments results show that the LSSVM classifier is effective to classify different stego images,and it is also reliable to blind steganalysis for all kinds of JPEG images Steganography.