1. Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Diagrams of the (a) OC-SVM classifier and (b) MHOC-SVM classifier. Figure Legend: From: Blind steganalysis method for JPEG steganography combined with the semisupervised learning and soft margin support vector machine J. Electron. Imaging. 2015;24(1):013008. doi:10.1117/1.JEI.24.1.013008

2. Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Feature distribution of the known cover samples and test samples. Figure Legend: From: Blind steganalysis method for JPEG steganography combined with the semisupervised learning and soft margin support vector machine J. Electron. Imaging. 2015;24(1):013008. doi:10.1117/1.JEI.24.1.013008

3. Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Detection result of preliminary judgment. Figure Legend: From: Blind steganalysis method for JPEG steganography combined with the semisupervised learning and soft margin support vector machine J. Electron. Imaging. 2015;24(1):013008. doi:10.1117/1.JEI.24.1.013008

4. Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Soft margin optimization of SVM. Figure Legend: From: Blind steganalysis method for JPEG steganography combined with the semisupervised learning and soft margin support vector machine J. Electron. Imaging. 2015;24(1):013008. doi:10.1117/1.JEI.24.1.013008

5. Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Classification result after the accurate judgment. Figure Legend: From: Blind steganalysis method for JPEG steganography combined with the semisupervised learning and soft margin support vector machine J. Electron. Imaging. 2015;24(1):013008. doi:10.1117/1.JEI.24.1.013008

6. Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Classification result after the secondary iteration. Figure Legend: From: Blind steganalysis method for JPEG steganography combined with the semisupervised learning and soft margin support vector machine J. Electron. Imaging. 2015;24(1):013008. doi:10.1117/1.JEI.24.1.013008

7. Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Flow chart of the whole procedure of the proposed method. Figure Legend: From: Blind steganalysis method for JPEG steganography combined with the semisupervised learning and soft margin support vector machine J. Electron. Imaging. 2015;24(1):013008. doi:10.1117/1.JEI.24.1.013008

8. Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Relationship between the number of binary classification and MER. Figure Legend: From: Blind steganalysis method for JPEG steganography combined with the semisupervised learning and soft margin support vector machine J. Electron. Imaging. 2015;24(1):013008. doi:10.1117/1.JEI.24.1.013008

9. Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Relationship between different combinations of penalty factors and MERs (PS=30). Figure Legend: From: Blind steganalysis method for JPEG steganography combined with the semisupervised learning and soft margin support vector machine J. Electron. Imaging. 2015;24(1):013008. doi:10.1117/1.JEI.24.1.013008