Steganalysis Using Image Quality Metrics (Normalized Correlation Metric)

Abstract

A new steganalysis method presented in this work to test the existence of hidden data in an mage and detect the data. The method depending on the comparison of the stego image with the host image using Normalized Correlation Function Metric, this method must be applied on the images that have the same scene (human eyes cannot distinguish one from the other), and by calculating the Normalized Correlation Function Metric value the hidden data detected, then the amount of the data calculated too with the percentage of changing pixels in the stego image.