Visual Cryptography is a special encryption technique to hide information in images, which divide secret image into multiple layers. Each layer holds some information. The receiver aligns the layers and the secret information is revealed by human vision without any complex computation. The proposed algorithm is for color image, that presents a system which takes four pictures as an input and ge...

background and objectives: red colored fruits such as cornelian cherry (cornus mas l) are recognized as being healthy. the color of these fruits is an important sensory property in assessment of product quality therefore, minimizing the loss of color in the process is very important. materials and methods: in this study, comparison of the color, turbidity, degradation rate of anthocyanin, and r...

XOR-based Visual Cryptography Scheme (XOR-based VCS) is a method of secret image sharing. The principle VCS to encrypt into several encrypted images, called shares. No information about the can be obtained from any shares, and after applying logical XOR operation stack these original recovered. In this paper, we present new for grayscale or color image. This scheme encrypts (or color) n meaning...

Visual cryptography is a powerful technique which combines the notions of perfect ciphers and secret sharing in cryptography with that of raster graphics. A binary image can be divided into shares which can be stacked together to approximately recover the original image. Unfortunately, it has not been used much primarily because the decryption process entails a severe degradation in image quali...

0003-2697/$ see front matter 2007 Elsevier Inc. All rights reserved. doi:10.1016/j.ab.2007.04.002 * Corresponding author. E-mail address: [email protected] (Y. Ryabov). Fig. 1. Traditional (left half of the figure) and new (right half of the figure) rend gels before loading; bottom panels show the scans of the processed gels. I 4%-acrylamide stacking buffer (upper right). The performance of th...

Stacking plays an important role in improving signal-to-noise ratio and imaging quality of seismic data. However, for low-fold-coverage seismic profiles, the result of conventional stacking is not always satisfactory. To address this problem, we have developed a method of stacking in which we use local correlation as a weight for stacking common-midpoint gathers after NMO processing or common-i...

In this paper, a combination method has been developed by coupling Multi-Objective Genetic Algorithms (MOGA) and Finite Element Method (FEM). This method has been applied for determination of the optimal stacking sequence of laminated composite plate against buckling. The most important parameters in optimization of a laminated composite plate such as, angle, thickness, number, and material of ...