Image Steganography by Using Multiwavelet Transform

Steganography is the art of secret communication. Its purpose is to hide the presence of information, using, for example, images as covers. The frequency domain is well suited for embedding in image, since hiding in this frequency domain coefficients is robust to many attacks. This paper proposed hi...

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Main Author: Baghdad Science Journal
Format: Article
Language:Arabic
Published: College of Science for Women, University of Baghdad 2014-06-01
Series:Baghdad Science Journal
Subjects:
Online Access:http://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/2630
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author Baghdad Science Journal
author_facet Baghdad Science Journal
author_sort Baghdad Science Journal
collection DOAJ
description Steganography is the art of secret communication. Its purpose is to hide the presence of information, using, for example, images as covers. The frequency domain is well suited for embedding in image, since hiding in this frequency domain coefficients is robust to many attacks. This paper proposed hiding a secret image of size equal to quarter of the cover one. Set Partitioning in Hierarchal Trees (SPIHT) codec is used to code the secret image to achieve security. The proposed method applies Discrete Multiwavelet Transform (DMWT) for cover image. The coded bit stream of the secret image is embedded in the high frequency subbands of the transformed cover one. A scaling factors ? and ? in frequency domain control the quality of the stego images. The proposed algorithm is compared with wavelet based algorithm which shows a favorable results in terms of PSNR reaches to 18 dB.
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spelling doaj.art-798eb9eb95f5483c891795a846c0ebb52022-12-21T22:02:38ZaraCollege of Science for Women, University of BaghdadBaghdad Science Journal2078-86652411-79862014-06-0111210.21123/bsj.11.2.275-283Image Steganography by Using Multiwavelet TransformBaghdad Science JournalSteganography is the art of secret communication. Its purpose is to hide the presence of information, using, for example, images as covers. The frequency domain is well suited for embedding in image, since hiding in this frequency domain coefficients is robust to many attacks. This paper proposed hiding a secret image of size equal to quarter of the cover one. Set Partitioning in Hierarchal Trees (SPIHT) codec is used to code the secret image to achieve security. The proposed method applies Discrete Multiwavelet Transform (DMWT) for cover image. The coded bit stream of the secret image is embedded in the high frequency subbands of the transformed cover one. A scaling factors ? and ? in frequency domain control the quality of the stego images. The proposed algorithm is compared with wavelet based algorithm which shows a favorable results in terms of PSNR reaches to 18 dB.http://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/2630Discrete Multiwavelet Transform (DMWT), image hiding, SPIHT algorithm
spellingShingle Baghdad Science Journal
Image Steganography by Using Multiwavelet Transform
Baghdad Science Journal
Discrete Multiwavelet Transform (DMWT), image hiding, SPIHT algorithm
title Image Steganography by Using Multiwavelet Transform
title_full Image Steganography by Using Multiwavelet Transform
title_fullStr Image Steganography by Using Multiwavelet Transform
title_full_unstemmed Image Steganography by Using Multiwavelet Transform
title_short Image Steganography by Using Multiwavelet Transform
title_sort image steganography by using multiwavelet transform
topic Discrete Multiwavelet Transform (DMWT), image hiding, SPIHT algorithm
url http://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/2630
work_keys_str_mv AT baghdadsciencejournal imagesteganographybyusingmultiwavelettransform