Recently, there has been an increased interest in the transmission of digital medical images for e-health services. However, existing implementations of this service do not pay much attention to the confidentiality and protection of patients’ information. In this paper, we present a new medical image steganography technique for protecting patients’ confidential information through the embedding...

We present a novel reversible data hiding scheme for point-sampled geometry in the spatial domain. To the best of our knowledge, our scheme is the first in the literature for recovering the original point-sampled model using little amount of information. In contrast, other schemes generally need to store an extra large amount of bit size equal to the payload size for reversibility. Our scheme f...

The rapid development of digital multimedia has resulted in a massive storm large-scale data. data compression method reduces size and lowers transmission costs. As result, data-hiding research the domain poses significant challenges to researchers. This work proposes highly imperceptible scheme for compressed absolute moment block truncation coding (AMBTC) image. proposed addresses shortcoming...

As the blueprint of vital activities of most living things on earth, DNA has important status and must be protected perfectly. And in current DNA databases, each sequence is stored with several notes that help to describe that sequence. However, these notes have no contribution to the protection of sequences. In this paper, the authors propose a reversible data hiding method for DNA sequences, ...

Abstract In this paper, embedding a watermark in the image is performed in discrete Contourlet transform (CT) domain. It is known that the CT is able to capture the directional edges and contours superior to discrete wavelet transform. We introduce three methods. The first proposed method is based on embedding watermark bits into the singular value of the selected blocks within low-pass sub-ban...

A low-overhead scheme for achieving complete (100%) fault coverage during built-in self test of circuits with scan is presented. It does not require modifying the function logic and does not degrade system performance (beyond using scan). Deterministic test cubes that detect the random-pattern-resistant (r.p.r.) faults are embedded in a pseudorandom sequence of bits generated by a linear feedba...

In this paper a novel spatial domain LSB based watermarking scheme for color Images is proposed. The proposed scheme is of type blind and invisible watermarking. Our scheme introduces the concept of storing variable number of bits in each pixel based on the actual color value of pixel. Equal or higher the color value of channels with respect to intensity of pixel stores higher number of waterma...

The amount of information recorded in the prediction tables of the proposed address predictors turns out to be comparable to the current on-chip cache sizes; for instance, a last-address predictor that records 4.096 64-bit effective addresses uses a 32 Kbytes storage space. Area cost of address predictors is proportional to address width. To reduce their area cost, we will take advantage of th...

This work addresses the watermarking of an entropy coded H.264/AVC video stream. The phrase Substitution Watermarking is used to imply that the application of the watermark to the stream is accomplished by substituting an original block of bits in the entropy-encoded stream with an alternative block of bits. This substitution is done for many different blocks of bits to embed the watermark. Thi...

In this paper, we propose a dual-image based reversible data hiding scheme. Here, we divide a secret message into sub-stream of size n bits, where n − 1 bits are embedded using Pixel Value Differencing (PVD) and 1 bit is embedded using Difference Expansion (DE). We consider two consecutive pixels from cover image, calculate the difference between them and then embed n − 1 bits secret message by...