A high capacity reversible data hiding scheme based
A high capacity reversible data hiding scheme based on right-left shift u. Source : Signal Processing, vol. 150, pp. 102 -115, September 2018 u. Authors : Wang Weiqing , Ye Junyong , Wang Tongqing and Wang Weifu u. Speaker : Chia-Shuo Shih u. Date : 2018/08/30 1
Outline �Related work �Proposed method �Experimental results �Conclusions 2
Related work-Histogram shifting 2 2 3 4 5 10 9 8 2 3 3 4 5 7 1 1 3 3 2 5 4 1 2 3 4 6 4 3 2 1 2 3 4 3 3 0 1 2 3 4 5 6 Number Z. Ni, Y. Q. Shi, N. Ansari, W. Su Reversible data hiding IEEE Trans. Circuits Syst. Video Technol. , 16 (3) (2006), pp. 354 -362 3
Related work-Histogram shifting 2 2 3 5 6 2 3 3 5 6 1 1 3 3 2 5 1 2 3 5 3 3 10 10 9 9 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 0 0 1 2 3 4 5 6 4
Related work-Histogram shifting 2 2 3 5 6 2 4 3 5 6 2 1 1 4 4 2 3 5 5 1 2 4 5 3 3 2 3 5 3 4 2 2 3 5 6 2 3 3 5 6 1 1 3 3 5 1 2 2 3 5 s = 010111001 10 6 9 8 5 7 4 6 5 3 4 2 3 2 1 1 0 0 1 2 3 4 5 6 5
Proposed method 6
Proposed method p(i, j) p(i, j+1) p(i+1, j+1) 7
Proposed method 8
Proposed method 151 203 173 194 160 187 149 120 111 152 155 162 185 173 170 142 135 138 152 113 154 150 148 117 171 174 200 161 166 162 156 145 186 170 166 177 169 165 184 159 127 161 196 181 178 183 152 137 141 155 161 174 176 161 155 146 156 120 156 169 162 p(1, 7) = 149 p(5, 6) = 177 p(1, 1) = 151 203 111 152 d(1, 1) = 151 – 155 = -4 149 120 170 142 177 169 181 178 d(1, 7) = 149 – 144 = 5 d(5, 6) = 177 – 176 = 1 9
Proposed method-right shift d(1, 1) = -4 , -4 < 2 d(5, 6) = 1 -2 < 1 < 2 10
Proposed method-left shift 11
Proposed method overflow and underflow: 151 203 173 194 160 187 149 120 141 208 178 199 150 192 154 120 111 152 155 162 185 173 170 142 101 157 160 167 190 178 175 142 135 138 152 113 154 150 148 117 125 128 142 103 144 140 153 117 171 174 200 161 166 162 156 145 161 164 205 151 156 152 146 145 186 170 166 177 169 165 191 175 156 166 176 159 165 184 159 127 161 196 181 178 183 189 164 117 151 201 186 179 183 152 137 141 155 161 174 176 154 127 131 160 166 179 176 161 155 146 156 120 156 169 162 12
Proposed method overflow and underflow: -12 ≤ 0 ≤ 7 13
Proposed method -4 ≤ 0 ≤ 7 14
Experimental results [5]Ioan. Catalin Dragoi, D. Coltuc, Local-prediction-based difference expansion reversible watermarking, IEEE Trans. Image Process. , 23 (4) (2014), pp. 1779 -1790 [14]B. Xue, X. Li, J. Wang, Z. Guo, Improved reversible data hiding based on two-dimensional difference-histogram modification, Multimed. Tools Appl. (2016), pp. 1 -19 [15]Aulia Arham, H. A. Nugroho, T. B. Adji, Multiple layer data hiding scheme based on difference expansion of quad ☆Signal Process. , 137 (2017), pp. 52 -62 [29]J. Wang, J. Ni, X. Zhang, Y. Q. Shi, Rate and distortion optimization for reversible data hiding using multiple histogram shifting, IEEE Trans. Cybern. , 47 (2) (2017), p. 315 [35]X. Zhang, Z. Qian, G. Feng, Y. Ren, Efficient reversible data hiding in encrypted images, J. Vis. Commun. Image Represent. , 25 (2) (2014), pp. 322 -328 1
Experimental results 1
Conclusions �Right left shift �The proposed method is simple and easy to implement. �The proposed scheme has high EC on different images 1
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