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Reversible data hiding scheme using reference pixel and multi-layer embedding

Reversible data hiding scheme using reference pixel and multi-layer embedding. Source: International Journal of Electronics and Communications. Author: Xian-ting Zeng, Zhou Li and Ling-di Ping. Speaker: Mick Huang. 2013/11/13. 1. Outline. Introduction Embedding Extracting Reversible

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Reversible data hiding scheme using reference pixel and multi-layer embedding

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  1. Reversible data hiding scheme using reference pixel and multi-layer embedding Source: International Journal of Electronics and Communications • Author: Xian-ting Zeng, Zhou Li and Ling-di Ping Speaker: Mick Huang 2013/11/13 1

  2. Outline • Introduction • Embedding • Extracting • Reversible • Multi-layer • PSNR & bpp 2

  3. Introduction • What’s data hiding? Secret Message 3

  4. Embedding 5 2 -4 2 -2 1 -2 -5 4

  5. Embedding 5 3 4 147 149 156 Eq.(2) 2 -2 150 154 1 -3 -5 151 155 157 5

  6. Extracting 5 3 4 5 2 -4 Eq.(3) 2 -2 2 -2 1 -3 -5 1 -2 -5 6

  7. Reversible 4 2 3 148 150 155 Eq.(4) 150 154 2 -2 1 -2 -4 151 154 156 7

  8. Multi-layer 12-layer 4x2 block =4~0 3x3 block =5~1 1x5 block =2~1 8

  9. 9

  10. PSNR & bpp 10

  11. -Thanks for listening- 11

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