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Communication by transferring data using computer networks have an important role nowadays. There are many activities which require sending or receiving data from one host to another. However, it can be a problem if the data is compromised during the transmission. In order to resolve the problem, steganography is used to secure the data. It is a data hiding method which can hide sensitive data in...
Reversible Data Hiding is the technique of concealing covert information in cover media to ease secure communication without compromising the quality of cover media after extracting the message. The primary purpose of this paper is to implement RDH by generating a blueprint of the cover image, in which complemented message is hidden using inverted bit LSB [1] technique. Results prove that proposed...
Security of secret data has been a major issue of concern from ancient time. Steganography and cryptography are the two techniques which are used to reduce the security threat. Cryptography is an art of converting secret message in other than human readable form. Steganography is an art of hiding the existence of secret message. These techniques are required to protect the data theft over rapidly...
This paper modifies an elegant data hiding method of Chang et alpsilas [Pattern Recog. Lett. 2004, vol. 25, no. 11, 1253-1261]. The embedding employs a modified search-order coding (SOC) technique to hide binary secret data in the vector quantization (VQ) index file of a host image. The recovered host image is identical to the one recovered by traditional VQ; the compression rate is competitive to...
In this paper, we present a scheme of steganalysis of JPEG images with the use of polynomial fitting and computational intelligence techniques. Based on the Generalized Gaussian Distribution (GGD) model in the quantized DCT coefficients, the errors between the logarithmic domain of the histogram of the DCT coefficients and the polynomial fitting are extracted as features to detect the adulterated...
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