Plus and Minus Cross Steganography Algorithm

In this papar a new hiding mode in DCT domain, named plus and minus cross replacement, is proposed. Based on the mode, a new steganography scheme for JPEG images is designed. This scheme keeps the statistics distributing of quantized DCT coefficients well after embedding. The histogram of DCT coefficients of the original image, the steg image and the calibrated image basically keep consistent. So the arithmetic can resist the steganalysis based on histogram attack. Experimental results show the advantage of this scheme compared with others.