Improvement of TND steganalysis based on image complexity

Information hiding secures information transmission on the Internet, but if used illegally, it will bring great threats even harm to social security. Steganalysis is the detection to the hiding information in digital carrier. An improvement of TND steganalysis for LSB embedding is purposed in this paper. Based on the relationship of the image complexity and the PV value obtained in TND scheme, a weighting scheme is constructed to make the PV values fall into a relative steady interval, which counteracts the difference comes from different images. Experimental result offered higher detection rate and lower false alarm rate than its original scheme.