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.read more
Citations
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Journal ArticleDOI
Secure data hiding techniques: a survey
TL;DR: This article presents a detailed discussion of different prospects of digital image watermarking and performance comparisons of the discussed techniques are presented in tabular format.
Patent
Secure and efficient content screening in a networked environment
TL;DR: In this article, a watermark extraction and content screening operation can be organized such that some or all of the operations can be conducted at different times by different devices, and the authenticity of various devices can be verified through exchange of certificates that can further enable such devices to ascertain capabilities of one another.
Journal ArticleDOI
An Overview on Hiding Information Technique in Images
Patent
Variable message coding protocols for encoding auxiliary data in media signals
TL;DR: In this article, variable message coding protocols enable greater flexibility in encoding auxiliary data in media signals by using a version identifier that indicates the type of coding used to process an auxiliary data message before it is embedded in a host media signal.
Journal ArticleDOI
High-payload image steganography using two-way block matching
Ran-Zan Wang,Yeh-Shun Chen +1 more
TL;DR: This letter presents a novel image steganography method that utilizes a two-way block-matching procedure to search for the highest similarity block for each block of the important image.
References
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