A Digital Watermarking for Lifting Based Compression And Encryption of JPEG 2000 Images

International Journal of Computer Trends and Technology (IJCTT)          
© - June Issue 2013 by IJCTT Journal
Volume-4 Issue-6                           
Year of Publication : 2013
Authors :Ansu Anna Ponnachen, Lidiya Xavier


Ansu Anna Ponnachen, Lidiya Xavier "A Digital Watermarking for Lifting Based Compression And Encryption of JPEG 2000 Images"International Journal of Computer Trends and Technology (IJCTT),V4(6):1747-1751 June Issue 2013 .ISSN 2231-2803.www.ijcttjournal.org. Published by Seventh Sense Research Group.

Abstract: - In the digital world the digital media is currently evolving at such rapidly;copyright protection is become increasingly important.Now a days these media is available with various image formats,due to which they are simple to copy and resell without any loss of quality.A wide range of digital media is often distributed by multiple levels of distributors in a compressed and encrypted format.It is sometimes necessary to watermark the compressed encrypted media items in the compressed encrypted domain itself for tamper detection or ownership declaration or copyright management purposes.The objective of image compression is to reduce irrelevance and redundancy of the image data inorder to be able to store or transmit data in an efficient form.This paper deals with the watermarking of compressed and encrypted JPEG 2000 images.The compression is achieved on JPEG 2000 images by lifting based architecture.The encryption algorithm used is stream cipher.The identification of watermark can be done in the decrypted domain.The watermarking technique used is spread spectrum.This can be implemented through matlab.


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Keywords - JPEG 2000,Lifting Scheme,RC4,Spread Spectrum