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This paper proposes an information hiding method based on similar sample block. The proposed scheme divides a standard contrast image into several blocks, called sample blocks, and takes the sample block as the contrast benchmark for embedding the secret information. This method provides a simple embedding process but a better result. The standard image can be placed on the web or specific places...
This paper presents a speech information-hiding scheme that is integrated with the CELP (Coded Exited Linear Prediction) speech coding method. The G.729 codec (CS-ACELP) is used to test the efficiency of this scheme. The index-constrained method is applied for the secret information embedding. The selected bits of first-stage and residual vector indices during the Predictive Two-stage Vector Quantization...
Information hiding techniques have received much attention in the fields of the copyright protection and covert communication etc. This paper proposes a new data hiding method in a still image. With color quantization technique, redundant space in a color still image is created, and the palette of the image is amended. Then secret information is embedded into the most significant bit of pixels of...
New steganography methods are being proposed to embed secret information into text cover media in order to search for new possibilities employing languages other than English. This paper utilizes the advantages of diacritics in Arabic to implement text steganography. Diacritics - or Harakat - in Arabic are used to represent vowel sounds and can be found in many formal and religious documents. The...
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