DEVELOPMENT OF ACTIVITY PHOTO COMPRESSION SYSTEM USING DEFLATE METHOD (Case Study : Vidyanusa Mobile)

• Main Author: YOGA TRITAMA (NIM : 23215390), MOCHAMAD
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/28974
• Institution: Institut Teknologi Bandung

One feature of mobile portal vidyanusa is reporting activities, this feature allows <br /> <br /> <br /> <br /> students to report their positive activities outside the classroom so that teachers can <br /> <br /> <br /> <br /> assess their activities outside the classroom. Recording activities using the camera <br /> <br /> <br /> <br /> feature on the smartphone, where the camera technology on the smartphone is <br /> <br /> <br /> <br /> increasing which resulted in the size of the image becomes larger because the resulting <br /> <br /> <br /> <br /> image resolution is greater. <br /> <br /> <br /> <br /> In Indonesia the distribution of information technology, especially bandwidth is not <br /> <br /> <br /> <br /> evenly distributed, there are many areas that have very low bandwidth so it takes a <br /> <br /> <br /> <br /> long time to perform the process of uploading photos. Therefore made compression <br /> <br /> <br /> <br /> system on mobile vidyanusa. <br /> <br /> <br /> <br /> In this study, the compression system was applied to mobile vidyanusa to help students <br /> <br /> <br /> <br /> report their fieldwork. Because the data transmitted has a smaller size thanks to the <br /> <br /> <br /> <br /> compression system. So students wherever they are may be able to report in the <br /> <br /> <br /> <br /> absence of barriers of low bandwidth. <br /> <br /> <br /> <br /> The compression system is classified into 2, ie lossless and lossy. This research will <br /> <br /> <br /> <br /> implement lossless because the capability will not reduce the quality. The deflate <br /> <br /> <br /> <br /> method will be used because this method is a combination of the sliding window <br /> <br /> <br /> <br /> compression method and the huffman coding compression method, so that the <br /> <br /> <br /> <br /> performance is better than both methods. <br /> <br /> <br /> <br /> In the experiments performed, this method resulted in an average compression ratio <br /> <br /> <br /> <br /> of 0.65.