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Steganalysis Using Image Quality Metrics(Normalized Correlation Metric) | ||
| Al-Fatih journal | ||
| Article 1, Volume 4, Issue 32, 2008, Pages 93-101 | ||
| Author | ||
| Adil Ismaeel Kahdum | ||
| 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.The goal of steganography is to communicate securely in a completely undetectable manner, in such a way that an adversary should not be able to differentiate in any sense between cover image (image not containing any secret message) and stego image (image containing a secret message)(1). Steganography is a game between the hider and the seeker. The hider wants to hide as much information as they can without being discovered. This maximum amount is defined by the tools a seeker is able to analyze data with.Steganography deals with hiding messages in cover images. To embed a message, the cover image is slightly modified by embedding techniques (2). | ||
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