Steganalysis Based on Neighbor Image Pixels Correlation

The carrier image has the correlation in a certain range,and the size of the correlation decreases with the increase of the distance between the image elements.Based on this character,we introduce a steganalysis.With the statistic number of interval 1,interval 2 model 2 addition to the LSB(the least significant bit) serials.Then get the distinct test of χ2 to detect whether it has secret information.Experiment shows that this algorithm has well detecting performance to LSB matching.The proposed method is worked on the image pixels correlation.It doesn't focus on a given steganography in detecting process.So it has a good performance.