Cover Processing-based Steganographic Model with Improved ...
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![Page 1: Benchmarking steganographic and steganalysis techniques Electronic Imaging of SPIE 2005 Authors:Kharrazi, Mehdi, Husrev T. Sencar, and Nasir Memon Department.](https://reader036.fdocuments.us/reader036/viewer/2022082506/5697bfa41a28abf838c973af/html5/thumbnails/1.jpg)
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Benchmarking steganographic and steganalysis techniques
Electronic Imaging of SPIE 2005Authors:Kharrazi, Mehdi, Husrev T. Sencar, and Nasir
MemonDepartment of Electrical and Computer Engineering
Polytechnic University, Brooklyn, NY 11201, USA
![Page 2: Benchmarking steganographic and steganalysis techniques Electronic Imaging of SPIE 2005 Authors:Kharrazi, Mehdi, Husrev T. Sencar, and Nasir Memon Department.](https://reader036.fdocuments.us/reader036/viewer/2022082506/5697bfa41a28abf838c973af/html5/thumbnails/2.jpg)
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Outline
• Introduction• Universal steganalysis• Embedding techniques• Discussion • References
![Page 3: Benchmarking steganographic and steganalysis techniques Electronic Imaging of SPIE 2005 Authors:Kharrazi, Mehdi, Husrev T. Sencar, and Nasir Memon Department.](https://reader036.fdocuments.us/reader036/viewer/2022082506/5697bfa41a28abf838c973af/html5/thumbnails/3.jpg)
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Introduction
• specific steganalysis techniques– good results.– might fail on all other steganographic
algorithms. • Universal steganalysis techniques– less accurately.– acceptable results on new and unseen embedding
algorithms.
![Page 4: Benchmarking steganographic and steganalysis techniques Electronic Imaging of SPIE 2005 Authors:Kharrazi, Mehdi, Husrev T. Sencar, and Nasir Memon Department.](https://reader036.fdocuments.us/reader036/viewer/2022082506/5697bfa41a28abf838c973af/html5/thumbnails/4.jpg)
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Introduction
• Receiver operating characteristics (ROC)– organizing classifiers– Visualizing– true positive (TP) hit– true negative (TN) correct rejection– false positive (FP) false alarm– false negative (FN)miss
![Page 5: Benchmarking steganographic and steganalysis techniques Electronic Imaging of SPIE 2005 Authors:Kharrazi, Mehdi, Husrev T. Sencar, and Nasir Memon Department.](https://reader036.fdocuments.us/reader036/viewer/2022082506/5697bfa41a28abf838c973af/html5/thumbnails/5.jpg)
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Universal steganalysis
Find and calculate features– BSM(binary similarity measure)– Wavelet Based– Feature Based
Strong classification algorithm
Preprocessing Framing
Feature extraction methods
Classification
![Page 6: Benchmarking steganographic and steganalysis techniques Electronic Imaging of SPIE 2005 Authors:Kharrazi, Mehdi, Husrev T. Sencar, and Nasir Memon Department.](https://reader036.fdocuments.us/reader036/viewer/2022082506/5697bfa41a28abf838c973af/html5/thumbnails/6.jpg)
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Embedding techniques
• Outguess• Chooses redundant DCT coefficients which have
minimal effect on the cover image and then embed the message.• Adjust remaining coefficients in order preserve the
original histogram of DCT coefficients.
![Page 7: Benchmarking steganographic and steganalysis techniques Electronic Imaging of SPIE 2005 Authors:Kharrazi, Mehdi, Husrev T. Sencar, and Nasir Memon Department.](https://reader036.fdocuments.us/reader036/viewer/2022082506/5697bfa41a28abf838c973af/html5/thumbnails/7.jpg)
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Embedding techniques
• F5• Implementation of matrix encoding, decreases the
necessary number of changes.
![Page 8: Benchmarking steganographic and steganalysis techniques Electronic Imaging of SPIE 2005 Authors:Kharrazi, Mehdi, Husrev T. Sencar, and Nasir Memon Department.](https://reader036.fdocuments.us/reader036/viewer/2022082506/5697bfa41a28abf838c973af/html5/thumbnails/8.jpg)
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Embedding techniques
• Model based• Transformed image coefficients into two parts, replaces
the perceptually insignificant component with the coded message signal
![Page 9: Benchmarking steganographic and steganalysis techniques Electronic Imaging of SPIE 2005 Authors:Kharrazi, Mehdi, Husrev T. Sencar, and Nasir Memon Department.](https://reader036.fdocuments.us/reader036/viewer/2022082506/5697bfa41a28abf838c973af/html5/thumbnails/9.jpg)
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Embedding techniques
• PQ(Perturbed Quantization Steganography )• Re-compressed with a lower quality factor.• Modified coefficients during compression.
![Page 10: Benchmarking steganographic and steganalysis techniques Electronic Imaging of SPIE 2005 Authors:Kharrazi, Mehdi, Husrev T. Sencar, and Nasir Memon Department.](https://reader036.fdocuments.us/reader036/viewer/2022082506/5697bfa41a28abf838c973af/html5/thumbnails/10.jpg)
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Discussion
• Actual embedding rate will be lower do to the embedding overhead incurred when splitting the image into smaller blocks.
• FBS has the best performance among the 3 techniques studied.
![Page 11: Benchmarking steganographic and steganalysis techniques Electronic Imaging of SPIE 2005 Authors:Kharrazi, Mehdi, Husrev T. Sencar, and Nasir Memon Department.](https://reader036.fdocuments.us/reader036/viewer/2022082506/5697bfa41a28abf838c973af/html5/thumbnails/11.jpg)
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References
• An introduction to ROC analysis• BSM(binary similarity measure)• Wavelet Based• Feature Based• Outguess• F5• Model based• PQ