Robust reversible data hiding scheme based on twolayer
Robust reversible data hiding scheme based on two-layer embedding strategy Source: Information Sciences, vol. 512, February 2020, pages 96 -107 Authors: Rajeev Kumar, Ki-Hyun Jung Speaker: Guanlong Li Date: 2019/10/17 1
Outline • Introduction • Related Works • SBDE(significant-bit-difference expansion) • Proposed Scheme • Experimental Results • Conclusions 2
Introduction(1/2) Compressed System Original image Compressed image Secret 155 0 1 1 0 0 0 Secret Compress 158 0 1 1 3
Introduction(2/2) Goal Low distortion Secret Reversible data hiding 155 1 0 0 1 1 Compress 158 1 0 0 1 1 0 4
Related Works(1/3) - SBDE Secret data Difference Expansion Original Image Stego Image 5
Related Works(2/3) HSB a 7 a 6 a 5 a 4 a 3 a 2 a 1 a 0 a 7 a 6 a 5 a 4 a 3 155 19 1 0 0 1 1 155 158 154 157 160 158 159 0 1 1 HSB 1 0 0 1 LSB a 2 a 1 a 0 3 0 1 1 19 19 19 20 LSB 1 ---------------- n=3 19 19 19 3 6 2 5 5 0 6 7 7 6
Related Works(3/3) 155 158 154 19 19 0 0 157 160 19 19 20 0 0 1 158 159 19 19 19 0 0 0 1 1 1 Secret bits 19 20 20 3 6 2 5 5 0 6 7 7 19 20 21 155 166 162 19 19 20 157 165 168 159 167 7
Proposed Scheme(1/5) Secret data Scanning and sorting Two layer embedding Original image Stego image 8
Scanning and sorting Proposed Scheme(2/5) 19 19 20 19 19 155 158 154 157 160 n=3 158 159 Original image 3 6 2 5 5 0 6 7 7 19 19, 20, 19 9
Proposed Scheme(3/5) 19 19 19 20 19 19 19, 20, 19 19 19, 19, 20 = 19 = 20 10
Two layer embedding Proposed Scheme(4/5) 19 19 19, 19, 20 19 19 19 = 20 First layer embedding 19 19 19 20 19 19 11
Proposed Scheme(5/5) 19 19 19, 19, 20 19 19 19 = 20 3 6 2 5 5 0 6 7 7 155 158 154 19 19 19 157 153 160 19 19 20 19 18 20 158 159 19 19 19 Stego image 19 19 19 Second layer embedding 12
Experimental Results(1/2) 13
![Experimental Results(2/2) [43] T. Zong, Y. Xiang, I. Natgunanathan, S. Guo, W. Zhou, G.](http://slidetodoc.com/presentation_image_h/bd528376cbaa04d4f901e8ee90689192/image-14.jpg "Experimental Results(2/2) [43] T. Zong, Y. Xiang, I. Natgunanathan, S. Guo, W. Zhou, G.")
Experimental Results(2/2) [43] T. Zong, Y. Xiang, I. Natgunanathan, S. Guo, W. Zhou, G. Beliakov, Robust histogram shape-based method for image watermarking, 2015, IEEE Trans. Circuits Syst. Video Technol. , 25, 5, 717729. [44] R. Rajkumar, A. Vasuki, Reversible and robust image watermarking based on histogram shifting, Cluster Computing, 2018, doi: 10. 1007/s 10586 -017 -1614 -9. online published. 14 [45] W. Wang, J. Ye, T. Wang, W. Wang, Reversible data hiding scheme based on significant-bit-difference expansion , 2017, IET Image Process. 11 , 11.
Conclusions • The proposed scheme has embedded the secret data into the higher significant bits of the image to guard the hidden message against the modification attacks. • The efficient use of redundancy prevalent in the HSB plane has aided in increased EC and least distortion. 15
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