Super Resolution for Fast Transfer of Graphics over Internet Dr. Varsha H. Patil Professor, University of Pune, India, varsha.patil@gmail.com Dr. Gajanan K. Kharate, Principal, MCREC Nashik Dr. Dattatraya S. Bormane and Snehal S. Kamlapur gkkharate@rdiffmail.com,dsbormane@yahoo.com,snehal_kamalapur@yahoo.com Abstract—The Internet has become an indispensable component of today’s transacting world. Though a powerful medium, the Internet cannot always quickly transfer web page having image in its current form. Such web pages not only take long time to reach their destination but sometimes completely slow down or block other traffic on the network. To improve response time, in this paper we propose real time technique as an efficient way out for. We propose to transmit low resolution (LR) image at the transmitter, and show high resolution (HR) image at receiver. At transmitting end, special filter is applied to HR image to yield LR image and high frequency components. These high frequency components are used to build a basis function, which is optimal in size, and is sent along with LR image. HR image is reconstructed using these two at receivers end. For proposed approach the quality of image is better and time for transmission is less than that of conventional approaches. Simulation results show the validity of our approach. Index Terms— Extrapolation, Internet, High Resolution, Super Resolution, Thumbnail, Wavelet I. INTRODUCTION ODAY there is an imminent need of performance- optimized and reliable delivery of HTTP content by all application users. The result is the rapid growth and deployment of web-based applications. With increased distributed applications, performance has become a key issue in IT management. It is one of the quickest and most cost effective methods of sharing data in real time to ensure everyone have access to the latest relevant information. Image is one of the important contents of almost all information. An array of network acceleration technologies has been deployed in the applications data path by enterprises to address performance issues. Most application acceleration products rely heavily on basic technologies that are short-term solutions and end up increasing complexity in the long term, thus leaving the core problem un-addressed. T For image embedded web pages, a flexible solution that can cut down web traffic across multiple protocols and optimize applications performance is the urgent need. Image compression is one of the solutions for the fast transfer of contents across the web. Most of the compression techniques including JPEG2000 are lossy. Quantization removes some of the information for encoding, which leads to quantization error. Low frequency data is preserved while high frequency data is coarsely quantized [3,4,5]. This removes high frequency components of edge and brings in strong ringing artifact at the decoder. Decompression cannot recover high frequency components lost [4,5]. By any means downloading images on web creates sure compromises. The tradeoff is between resolution/ quality and faster download time. In case of medical images these factors are crucial. As the resolution increases the download time increases. For medical education and patient care the high resolution photographic quality electronic images play key role. These images on Internet are typically in Graphics Interchange Format (GIF) or the Joint Photographic Experts Groups (JPEG) format files. These formats suffer from a major drawback that there is considerable data loss in both color depth and image resolution. JPEG is used as a general purpose digital image compression standard for continuous-tone still images. The compressed file presents an edge effect with perceptible data loss [5]. Also these images are available in single resolution and have no capacity to adjust resolution as needed by user. The photo Compact disc (PCD) is format having higher resolution but suffer from larger size of file leading to more download time. The FlashFix format (FPX) offers advantages over GIF, JPEG and PCD formats for display of HR images over web[17]. A java applet can be easily downloaded for viewing FPX images. We have different approach that is better than these formats. The section VI is devoted for the same. One of the solutions is that to cut down the response time of browsing web pages, images are often shown in low-resolution form known as ‘thumbnail images’. An enlarged, high-resolution image is only shown if the user clicks on the related thumbnail. This approach still requires the high-resolution image to be stored on the web server and downloaded to the user’s client machine on insist. One of the solutions is to enlarge image at client side. While enlarging thumbnail using digital imaging software such as Adobe Photoshop at client machine JOURNAL OF MULTIMEDIA, VOL. 5, NO. 1, FEBRUARY 2010 71 © 2010 ACADEMY PUBLISHER doi:10.4304/jmm.5.1.71-78