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Spread Spectrum Image Steganography (SSIS).
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TEL 381 Introduction to Information Assurance Steganography Articles HW# 8 11-11-03 Calista wilson Spread Spectrum Image Steganography (SSIS) It is a new steganography technique. Steganography is the technique used to hide a message. SSIS hides and recovers a message of substantial length within digital imagery. The message is recovered using the appropriate keys. The particularity of the SSIS is that the image is not affected and the size and the dynamic range are conserved. The hidden information is sent within the noise. This noise is typical of the noise inherent to the image acquisition process. So if the noise is kept at low level the information is imperceptible to the human eye or by the computer analysis unless of access of the original image. The steps of SSIS are: * Spread Spectrum is technique used to embedded the information in the stegoimage * Image Restoration how the information is retrieved at receiver end * Error-Control Coding because the estimated of the...
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