基于图像库的图像和视频安全传输方案

基于量化编码、分形编码、图像马赛克编码的发展和成熟，提出一种基于图像库编码的图像和视频安全传输方案，通过隐藏图像库、置乱图像库和加密编码码流实现不同的安全保密等级．同时，图像库由收发方事先保存，传输的数据量较少，容易实现高效快速传输．理论分析和实验结果表明，此方案具有较高的安全性．因此适用于安全性和实时性要求高的图像或视频传输中．

A secure image or video transmission scheme based on image library

According to the development and wide application of vector quantization encoding, fractal encoding and image mosaic encoding, a secure transmission scheme based on image library for image or video is proposed. The scheme can realize different security levels by hiding image library, confusing image library or encrypting encoded data stream. For the image library is stored by the sender and receiver before hand, the data to be transmitted is less and it is easier to gain high transmission speed. Theoretical analyses and experiment results show that the algorithm is of high security. Thus, it is suitable for image or video transmission with requirements of high security and high speed.