International Journal of Advanced Research in Computer Engineering & Technology (IJARCET) Volume 4 Issue 9, September 2015 3513 ISSN: 2278 – 1323 All Rights Reserved © 2015 IJARCET A Review on image Compression Techniques Mr. Shubham Yadav 1 , Mrs. Shikha Singh 2 1 M.Tech. Scholar, ECE Department, CVRU, Bilaspur 2 Asst.Professor, ECE Department, CVRU, Bilaspur Abstract- With the rapid a advancement in multimedia technology, it has become possible to generate and transmit more and more multimedia data in military commercial and medical field. Some of these data includes some sensitive information which is required to be accessed by the intended person only. Therefore, security and privacy of these information is of prime concern today. In the last couple of years several encryption methods have been proposed for secure video transmission. Though lots of algorithms of video encryption have been presented but only few are used in real time. In this paper, a brief description and comparison of different video encryption algorithm has been presented. Encryption speed, stream size and security level are used for comparing the performance of these algorithm. Keywords- AES(Advance Encryption Standard), DES(Data Encryption Standard), Video Transmission, Video encryption I. INTRODUCTION The advancement in camera technology and with the introduction of digital camera, Image capturing, sharing, transferring and storing has become very simple. The images captured through the digital camera has various advantages over traditional camera images. Since images acquired by the digital camera is in digital form therefore it is easy to process the images for removing the various artefacts from the image. Images captured from the digital cameras are large in size and sharing or transferring these images in internet has been the main issue in the last two decades. Recently with the introduction of social networking site, sharing and transferring the images has become more severe as it require large bandwidth and space. Image Compression can be used to address this problems. Image compression is a techniques which is used to represent the image in comparatively fewer bits which hence reduce the amount of space for storing the image and also the bandwidth requirement is also reduced. So from this discussion it is clear that in digital world, Image compression is one of the important field of research. In a broader sense, image compression can be classified in two different categories i.e. lossy image compression and loss-less image compression. In lossless image compression techniques, the quality of the reconstructed image is same as the original image and hence is widely used in medical image compression and also for compressing the text data. While in lossy compression, The quality of the reconstructed image is degraded. The amount of degradation depends on the compression ratio. More compression degraded the quality of the image more while least compression degrades the image less. In compression algorithm, compression is achieved by eliminating the redundant information from the image. Since lossy image