New steganalysis algorithm using correlation of adjacent pixels;

Based on the statistical analysis on the oddity or evenness of the Gray-Scale values between adjacent pixels,a new steganalysis algorithm capable of a reliable detection of the spatial LSB steganography was proposed.

The algorithm of noise removing test whether the whole image points is influenced by noise to express the method of reserving objects edge and detail in image based on vicinity points;and the algorithm of image inpainting introduces a parameter Point Priority(PP)in inpainting region so as to express the inpainting algorithm based on vicini.

With some experiments, this paper pointed out the great differences between the absolute value of the difference of adjacent pixels of original images and stego images, and propose a new steganalysis method based on the difference of adjacent pixels in images.