Journal Press India^®

Author Details ( * ) denotes Corresponding author

In the digital World, huge amount of data is shared or stored every day. While sharing the data there may be a chance accessing of the data by an unauthorized persons. So In this study, by modifying standard JPEG compression algorithm, encryption and simultaneous decompression, decryption method is inspected. The proposed system deals with the computation of time and cost by combining compression and encryption by using Adaptive Bit plane Quad tree Block Truncation Coding (ABTC) technique. Here combined with edge detection and adaptive bit plane quantization, the adaptive bit plane quad tree-based BTC algorithm is used. The encryption of the data can be done with key validation technique. The main and ultimate goal is to secure the data from the unauthorized persons, to reduce the redundancy of the image and to store or transmit data in an efficient form.

Keywords

JPEG; Encryption; Compression; Decryption; Quantization; Quadtree; BTC

1. S Lian, D Kanellopoulos, G Ruffo. Recent Advances in Multimedia Information System Security, International Journal of Computing and Informatics, 33(1), 2009, 3-24


2. GK Wallace. The JPEG still picture compression standard, IEEE Transactions on Consumer Electronics, 38(1), 1992, 14-22.


3. Xilinx Appl. Note, XAPP616 (v1.0) April 22, 2003


4. CP Wu, CCJ Kuo. Design of integrated multimedia compression and ecryption systems, IEEE Trans. Multimedia, 7(5), 2005, 828-839.


5. CP Wu, CCJ Kuo. Fast encryption methods for audio-visualdata confidentiality, inSPIE Int. Symp. Information Technologies, 4209(11), 2000, 284.


6. J Nechvatal. Report on the Development of the Advanced Encryption Standard, National Institute of Standards and Technology, U.S. Dept. Commerce, Tech. Rep., 10, 2009


7. EJ Delp, OR Mitchell. Image coding using block truncation coding, IEEE Trans. Comm. 27, 1979, 1335–1342.


8. P Fränti, O Nevalainen, T Kaukoranta. Compression of Digital Images by Block Truncation Coding: A Survey, Computer Journal 37(4), 1994, 308-332.


9. M Lema, OR Mitchell. Absolute Moment Block Truncation Coding and Its Application to Color Images, Comm. IEEE Trans. on 32(10), 1984, 1148-1157