In this paper, we propose a novel scheme for data hiding in the fingerprint minutiae template, which is the most popular in fingerprint recognition systems. Various strategies are proposed in data embedding in order to maintain the accuracy of fingerprint recognition as well as the undetectability of data hiding. In bits replacement based data embedding, we replace the last few bits of each ele...

In this paper, a new reversible watermarking method is presented that reduces the size of a stereoscopic image pair while keeping its content visible. The proposed technique embeds the disparity compensated difference and the disparity vectors of the stereo pair into the reference image, halving its total capacity. The residual is usually lossy compressed before embedding because the embedding ...

In designing steganographic schemes, matrix embedding is an efficient method for increasing the embedding efficiency that is defined as an average number of bits embedded via per change on the cover. Matrix embedding is a previously introduced coding method that is used in steganography to improve the embedding efficiency (increase the number of bits embedded per embedding change). Higher embed...

The leakage of medical audio data in telemedicine seriously violates the privacy patients. In order to avoid patient information telemedicine, a two-stage reversible robust watermarking algorithm is proposed protect data. scheme decomposes into two independent embedding domains, embeds watermark and domains respectively. ensure quality, Hurst exponent used find suitable position for embedding. ...

By employing invariant relation between the mean value of the first (n − 1) pixels and the last one pixel (also called the remaining pixel) for every image block containing n pixels, a new reversible watermark scheme capable of mostly carrying 2n−3 bits into one n-sized image block in a single embedding process is presented in this paper. First, the mean value of the first (n − 1) pixel is calc...

In this paper, a novel two-dimensional Discrete Fourier Transform based information embedding has been proposed for color image authentication (2D-DFTSDECIA). Initially, each 2 × 2 sub-image block of the carrier image is pre-adjusted, if necessary and then transformed by the application of two dimensional Discrete Fourier Transforms (2D-DFT) where the transformation technique has been applied i...

In this paper, an effective method was introduced to steganography of text document in the host image. In the available steganography methods, the message has a random form. Therefore, the embedding capacity is generally low. In the proposed method, the main underlying idea was the sparse property of scanned documents. The scanned documents were converted from gray-level form to binary values b...

In this paper, we present a new steganographic paradigm for digital images in raster formats. Message bits are embedded in the cover image by adding a weak noise signal with a specified but arbitrary probabilistic distribution. This embedding mechanism provides the user with the flexibility to mask the embedding distortion as noise generated by a particular image acquisition device. This type o...

This paper presents a novel method for data hiding based on neighborhood pixels information to calculate the number of bits that can be used for substitution and modified Least Significant Bits technique for data embedding. The modified solution is independent of the nature of the data to be hidden and gives correct results along with un-noticeable image degradation. The technique, to find the ...