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Enhancing the Data Storage Capacity in QR Code Using Compression Algorithm and Achieving Security and Further Data Storage Capacity Improvement Using Multiplexing

This paper focuses on increasing the data storage capacity with less storage space of QR code by applying compression techniques. Further data capacity can be increased by applying multiplexing techniques i.e. Grouping of bits into codeword and providing security by replacing the codeword by special type of character. As there are varieties of medium for information sharing over distances. Thus QR code can be used as information sharing medium. QR code is 2 Dimension Barcode and comes under the category of data hiding techniques as it store data in hidden form. It stores data in matrix form using unique pattern. Data from QR code can be retrieved by using phone Camera of 2 Mega pixels or more. As QR has many advantage over 1D so it has been used in many diverse field for research areas such as techniques for data hiding like scanning of barcode, watermarking, steganography, Histogram based techniques, techniques for better recognition and also for security purpose it can be used in more application.