New techniques for dictionary based And sign language based text Compression and secure transmission

Abstract

The amount of digital content grows at a fast rate due to the newlinedemand for information On the other hand the amount of storage and newlinebandwidth available is increasing at a slower rate During the last decade newlinethere has been an increase in the amount of data transmitted via the Internet It newlineincludes text images speech video sound and computer data When it is newlinedesired to transmit data over an insecure and bandwidthconstrained channel newlineit is customary to first compress the data and then encrypt it Thus efficient newlinecompression methods are required Compression algorithms reduce the newlineredundancy in data representation to decrease the storage required for the newlinedata Compression offers an attractive approach to reduce the communication newlinecosts by using the available bandwidth effectively newline newline