In many practical scenarios, image encryption has to be conducted prior to image compression. This has led to problem of how to design a pair of image encryption and compression algorithms such that compressing the encrypted images can still be efficiently performed. In this paper, we design highly efficient image encryption-then-compression (ETC) system, where both the lossy and lossless compr...

-This research article focuses on image processing and encryption techniques. Image encryption is very vast field and currently over World Wide Web and security is main issue. It presents the technique of image encryption by using cellular automata. The image is splitted in number of pixels, block of pixels are created to be encrypted using blowfish algorithm, and these encrypted blocks are con...

In this paper, we propose a new image encryption algorithm based on the Compound chaotic image encryption algorithm. The original one can’t resist chosen-plaintext attack and has weak statistical security, but our new algorithm can resist the chosen-plaintext attack using a simple improvement solution. The improvement solution is novel and transplantable, it can also be used to enhance the abil...

With fast growing network, many people utilize the internet to transfer digital image information. The need of the time is to implement an extremely securable, economic and perfect system of image encryption that can be well protected from unauthorized access. Also, the bulk size of the image data produces many problems in their transmission via internet. So, in this paper, a very new and combi...

The traffic of digital images has grown rapidly in the Internet. Security of image becomes important for many sectors mainly for medical applications. Nowadays, the transmission of medical images is a daily routine, especially over wireless (battlefields, traffic accidents, etc). Partial encryption is an approach to reduce the computational resources for huge volumes of multimedia data in low p...

In most progressive image coding tcchniques the compressed data vary in importance for reconstructing the original image. Obtaining certain parts of these data by an eavesdropper could reveal significant information about the transmitted or stored image. In this paper different encryption methods to secure the transmission or storage of such data are proposed and evaluated. The methods are chos...

Due to the rapid growth of digital communication and multimedia application, security becomes an important issue of communication and storage of images. Encryption is one of the ways to ensure high security images are used in many fields such as medical science, military.Modern cryptography provides essential techniques for securing information and protecting multimedia data. In recent years, e...

With the fast progression of data exchange in electronic way, information security is becoming more important in data storage and transmission. Because of widely using images in industrial process, it is important to protect the confidential image data from unauthorized access. In this paper, we analyzed current image encryption algorithms and compression is added for two of them (Mirror-like i...

We propose a hybrid technique for image encryption which employs the concept of carrier image and SCAN patterns generated by SCAN methodology. Although it involves existing method like SCAN methodology, the novelty of the work lies in hybridizing and carrier image creation for encryption. Here the carrier image is created with the help of alphanumeric keyword. Each alphanumeric key will be havi...

According to encryption structure of permutation and diffusion, as well as pseudo-randomness of chaotic synchronization sequences, tracking Hindmarsh-Rose system via Genesio-Tesi system is applied into the process of image encryption. Theoretical analysis and simulations suggest that the proposed encryption algorithm has good security in image transmission.