Journals Proceedings

Abstract

This paper is primarily focused on our contribution aimed towards the compression of old Marathi Manuscript images. Our method of compression is working on the separation of the foreground from background, and then compressing it individually. Since foreground contains most intelligence of the manuscript image, we may compress it losslessly to preserve all of its aspects. Generally background of the manuscript have varying color gradient which carries no important information and therefore less significant. Hence we may compress background with lossy compression method. We carried over experimentation on 8 different test images under study. DWT based lossy coding is used for background compression and CALIC based lossless coding for foreground compression which obtains relatively optimized compression individually and when applied together achieved even higher level of compression. This hybrid approach combining DWT and CALIC together is proposed to achieve the improved compression at acceptable quality of the reconstructed manuscript images.