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Journal ArticleDOI

Spread spectrum image steganography

TLDR
A new method of digital Steganography, entitled spread spectrum image steganography (SSIS), which hides and recovers a message of substantial length within digital imagery while maintaining the original image size and dynamic range.
Abstract
We present a new method of digital steganography, entitled spread spectrum image steganography (SSIS). Steganography, which means "covered writing" in Greek, is the science of communicating in a hidden manner. Following a discussion of steganographic communication theory and review of existing techniques, the new method, SSIS, is introduced. This system hides and recovers a message of substantial length within digital imagery while maintaining the original image size and dynamic range. The hidden message can be recovered using appropriate keys without any knowledge of the original image. Image restoration, error-control coding, and techniques similar to spread spectrum are described, and the performance of the system is illustrated. A message embedded by this method can be in the form of text, imagery, or any other digital signal. Applications for such a data-hiding scheme include in-band captioning, covert communication, image tamperproofing, authentication, embedded control, and revision tracking.

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Citations
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Proceedings ArticleDOI

A robust image watermarking scheme based on perceptual contrast energy

TL;DR: In this work, a contrast based image watermarking algorithm is proposed based on a human visual system model, designed using concepts from attack modelling, and tested against different attacks.

A Wavelet Based ECG Steganography for Protecting Patient Confidential Information in Point-of-Care Systems

TL;DR: It is found that the proposed technique provides high security protection for patients data with low distortion and ECG data remains diagnosable after watermarking and as well as after watermarks are removed from the watermarked data.
Proceedings ArticleDOI

Complexity reduced multi-tier perceptual based partial encryption for secure speech communication

TL;DR: An algorithm is proposed that aims at exploiting the basic characteristics of speech signal, while designing such system with reduced complexity, and removal of the silent zones reduces the complexity which may circumvent the increasing computational complexity while implementing the multi-tier encryption algorithm.

WAVELET BASED DATA HIDING OF DEM IN THE CONTEXT OF REALTIME 3D VISUALIZATION (Visualisation 3D Temps-Réel à Distance de MNT par Insertion de Données Cachées Basée Ondelettes)

TL;DR: In this paper, a wavelet-based embedding method for hiding the data in a colored image is proposed to create a 3D visualization of terrains in a single file.
References
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Journal ArticleDOI

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Journal ArticleDOI

Secure spread spectrum watermarking for multimedia

TL;DR: It is argued that insertion of a watermark under this regime makes the watermark robust to signal processing operations and common geometric transformations provided that the original image is available and that it can be successfully registered against the transformed watermarked image.