نتایج جستجو برای: Encryption of Colored Images
تعداد نتایج: 21183193 فیلتر نتایج به سال:
In this paper, a new method is presented for encryption of colored images. This method is based on using stack data structure and chaos which make the image encryption algorithm more efficient and robust. In the proposed algorithm, a series of data whose range is between 0 and 3 is generated using chaotic logistic system. Then, the original image is divided into four subimages, and these four i...
In this paper, a proposed cryptosystem algorithm based on two different chaotic systems is presented. Chen's chaotic system and Henon chaotic system is used as different chaotic systems to obtain our proposed encryption algorithm; in order to meet the requirements of secure image transfer. The proposed encryption Algorithm will be designated as PCA2CS. It is applied on two different color's fre...
This paper presents a new method for encryption of color images based on a combination of chaotic systems, which makes the image encryption more efficient and robust. The proposed algorithm generated three series of data, ranged between 0 and 255, using a chaotic Chen system. Another Chen system was then started with different initial values, which were converted to three series of numbers from...
In recent years, the advancement of digital technology has led to an increase in data transmission on the Internet. Security of images is one of the biggest concern of many researchers. Therefore, numerous algorithms have been presented for image encryption. An efficient encryption algorithm should have high security and low search time along with high complexity.DNA encryption is one of the fa...
In this paper, a proposed permutation scheme based on three dimension chaotic map system will be presented. Chen's chaotic system is 3-D chaotic map system, which will be used to obtain the proposed permutation scheme. A proposed permutation scheme will be designated as PPS3DCS. It will be applied on two different color's frequencies colored-images. A proposed scheme (PPS3DCS), which Contains p...
wireless sensor networks (wsns) are one of the most interesting consequences of innovations in different areas of technology including wireless and mobile communications, networking, and sensor design. these networks are considered as a class of wireless networks which are constructed by a set of sensors. a large number of applications have been proposed for wsns. besides having numerous applic...
In this paper, a proposed cryptosystem algorithm based on two different chaotic systems is presented. The proposed cryptosystem algorithm is designated as PCACH. A recently developed encryption algorithm which is designated here, as HuXia is reviewed. These two algorithms are applied to three images of different color frequencies, i.e., different types of colored-images are encrypted with each ...
for the first time nakayama introduced qf-ring. in 1967 carl. faith and elbert a. walker showed that r is qf-ring if and only if each injective right r-module is projective if and only if each injective left r-modules is projective. in 1987 s.k.jain and s.r.lopez-permouth proved that every ring homomorphic images of r has the property that each cyclic s-module is essentialy embeddable in dire...
Steganography is data hiding technique that is mostly used. It uses cover object of type text, images, and videos. The paper presents a new devised algorithm to hide text in any colored image of any size using Huffman encryption and 2D Wavelet Transform. We presented simulated results which prove that there is very negligible image quality degradation. We used PSNR metric for this purpose. The ...
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