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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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Book ChapterDOI

A Bit Modification Technique for Watermarking Images and Streaming Video

TL;DR: The simplicity of embedding and blind recovery with low level noise-resistance render the proposed technique suitable for imperceptible watermarking of still images and streaming video over public networks.
Journal ArticleDOI

The Large Capacity Steganography Using Adaptive Threshold on Bit Planes

TL;DR: A new adaptive threshold method using the bit plane weight and the average complexity to increase insertion capacity adaptively of the large capacity steganography using adaptive threshold on bit planes is proposed.
Proceedings ArticleDOI

RSA Cryptography and GZIP Steganography Techniques for Information Hiding and Security using Java

TL;DR: In this article , the authors used both cryptography and steganography techniques to hide text, audio and image files in multimedia files in order to ensure the highly secure transmission of multimedia files on the network.
Journal ArticleDOI

Dithering Technique for Digital Image Steganography

TL;DR: This paper proposes a creative method for concealing and afterwards recovering a secret image and can blend two branches of innovation of image processing and stenography.
References
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Journal ArticleDOI

De-noising by soft-thresholding

TL;DR: The authors prove two results about this type of estimator that are unprecedented in several ways: with high probability f/spl circ/*/sub n/ is at least as smooth as f, in any of a wide variety of smoothness measures.
Book

Fundamentals of digital image processing

TL;DR: This chapter discusses two Dimensional Systems and Mathematical Preliminaries and their applications in Image Analysis and Computer Vision, as well as image reconstruction from Projections and image enhancement.
Journal ArticleDOI

Error bounds for convolutional codes and an asymptotically optimum decoding algorithm

TL;DR: The upper bound is obtained for a specific probabilistic nonsequential decoding algorithm which is shown to be asymptotically optimum for rates above R_{0} and whose performance bears certain similarities to that of sequential decoding algorithms.
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.