Quality Evaluation of Image Steganography Techniques: A Heuristics based Approach
نویسندگان
چکیده
منابع مشابه
Quality Evaluation of Image Steganography Techniques: A Heuristics based Approach
Steganography refers to techniques that hide information inside innocuous looking objects known as “Cover Objects” such that its very existence remains concealed to any unintended recipient. Images are pervasive in day to day applications and have high redundancy in representation. Thus, they are appealing contenders to be used as cover objects. There are a large number of image steganography t...
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But practical implementation of the definition is not feasible, so pragmatic approach would be to make the algorithm as strong as possible. Steganography is most widely formulated in terms of the prisoner’s problem where Alice and Bob are two inmates who wish to communicate in order to hatch an escape plan. However, all communication between them is examined by the warden, Wendy, who will put t...
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In this paper we propose a new steganography technique which embeds the secret messages in frequency domain. According to diferent users’ demands on the embedding capacity and image quality, the proposed algorithm is divided into two modes and 5 cases. Unlike the space domain approaches, secret messages are embedded in the high frequency coefficients resulted from Discrete Wavelet Transform. Co...
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Image based Steganography is the most popular method for message concealment. In this paper, two techniques are proposed for enhancing the message secrecy using image based steganography. The first technique is based on the use of punctuation marks to encode a secret message before embedding it into the image file. The second technique is based on the use of modified scytale cipher to hide a se...
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In this paper, we propose a dynamic approach to image steganography in the frequency domain in order to increase the hiding potential of the cover image. Concealing a secret file in another file for the sake of its safe transmission via the communication channel is the main aim of a steganography technique. Embedding small size messages in a cover image has less possibilities of hampering the q...
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ژورنال
عنوان ژورنال: International Journal of Security and Its Applications
سال: 2016
ISSN: 1738-9976,1738-9976
DOI: 10.14257/ijsia.2016.10.4.18