International Journal of Computer Network and Information Security (IJCNIS)
IJCNIS Vol. 7, No. 2, 8 Jan. 2015
Cover page and Table of Contents: PDF (size: 560KB)
Efficient Image Steganogrphic Algorithms Utilizing Transforms: Wavelet and Contourlet with Blowfish Encryption
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Author(s)
Saddaf Rubab
1,*
Younus Javed
1
Index Terms
Steganography, PSNR, blowfish, Huffman, DCT, DWT
Abstract
Steganography is a means to hide the existence of information exchange. Using this technique the sender embeds the secret information in some other media. This is done by replacing useless data in ordinary computer files with some other secret information. The secret information could be simple text, encoded text or images. The media used as the embedding plane could be an image, audio, video or text files. Using steganography ensures that no one apart from the sender and the receiver knows about the existence of the message. In this paper, a steganography method based on transforms used i.e. Wavelet and Contourlet. Devised algorithm was used against each transform. Blowfish Encryption method is also embedded to double the security impact. The major advantage of applying transforms is that the image quality is not degraded even if the number of embedded characters is increased. The proposed system operates well in most of the test cases. The average payload capacity is also considerably high.
Cite This Paper
Saddaf Rubab, Younus Javed, "Efficient Image Steganogrphic Algorithms Utilizing Transforms: Wavelet and Contourlet with Blowfish Encryption", International Journal of Computer Network and Information Security(IJCNIS), vol.7, no.2, pp.15-24, 2015. DOI:10.5815/ijcnis.2015.02.02
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