Steganalysis Using Image Quality Metrics (Normalized Correlation Metric)

Abstract

Steganography is the art of hiding information in an innocuous cover. Its basic purpose is to make communication unintelligible to those who do not possess the right keys. The message can be hidden inside of images or, other digital objects, which remains imperceptible to a casual observer. By embedding a secret message into a cover image, a stego image is obtained. As the stego-image does not contain any easily detectable visual artifacts due to message embedding, techniques.