Security

Image Steganography Combination of Spatial and Frequency Domain

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Executive Summary

Steganography is the art of hiding data inside a carrier file in such a way that an intruder or unwanted personnel is unable to detect the presence of data inside the carrier file. Audio, Video and Images are the different possible carrier files that can be used. This paper describes a steganographic technique which makes use of an image file as a carrier to hold the secret message and transfer it over the communication medium. There are two popular schemes used for image steganography: spatial domain embedding and transform domain embedding. Most of the steganographic techniques discussed in literature either use spatial domain or transform domain to embed the secret message.

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