Secure transmission of university exam question paper by image mosaicing

The rapid spread of the information and media through the digital world nowadays which is powered by ever faster system demands greater speed and security. As the world changes, technology is changing rapidly. Progress in the domain of network technology, multimedia and confidential information, relatively large amounts of images, videos are broadcast on the Internet easily. There are various chances for the attackers to steal or to leak these information while sending it over the internet. Therefore, to cope with this concern, it is necessary to process the new image data hiding techniques. In this paper new data hiding technique called image mosaicing is used to fulfill our goal. By using this method the secret exam question paper is not only transmitted by overlapping with another target image but also it is recovered losslessly from the overlapped mosaic image. Thus a very novel system is proposed in this paper by which complete security of question paper is maintained successfully and efficiently.