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A Color Image Hiding Scheme Based on SMVQ and Modulo Operator

A Color Image Hiding Scheme Based on SMVQ and Modulo Operator. Authors: Chi-Shiang Chan and Chin-Chen Chang Speaker: Chin-Chen Chang. Outline. 1. Introduction-VQ 2. Related work-SMVQ 、CSMVQ 3. The proposed method 4. Experimental results 5. Conclusions.

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A Color Image Hiding Scheme Based on SMVQ and Modulo Operator

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  1. A Color Image Hiding Scheme Based on SMVQ and Modulo Operator Authors: Chi-Shiang Chan and Chin-Chen Chang Speaker: Chin-Chen Chang

  2. Outline 1. Introduction-VQ 2. Related work-SMVQ 、CSMVQ 3. The proposed method 4. Experimental results 5. Conclusions

  3. Introduction- Vector Quantization (VQ)

  4. 2.Related Work (1/3)-SMVQ

  5. 2.Related Work (2/3)-SMVQ

  6. 2.Related Work (3/3)-CSMVQ

  7. 3. The proposed method(1/6)

  8. 3. The proposed method (2/6)

  9. 3. The proposed method (3/6)

  10. 3. The proposed method-Sort Algorithm (4/6) Luminance-sorted Algorithm Red pixel value Blue pixel value Luminance value Green pixel value

  11. 3. The proposed method-Sort Algorithm (4/6) Luminance-sorted Algorithm

  12. 3. The proposed method-Sort Algorithm (5/6) PCA-sorted Algorithm

  13. 3. The proposed method (6/6)-The Extraction Procedure Secret bit stream State palette ( i mod N) Get a color pixel from the state palette no Compress code Seed pixel? Reconstruct a color pixel yes Get a color pixel from the palette

  14. 4. Experimental results (1/5) The color host images with size 512 × 512 Pepper Lena Baboon The color secret images with size 128 × 128 Tiffany Jet

  15. 4. Experimental results (2/5)

  16. 4. Experimental results (3/5)

  17. 4. Experimental results (4/5)-The decoded color host images The result with two sub-state palettes by PCA-sorting The result with two sub-state palettes by luminance -sorting The result with four sub-state palettes by PCA-sorting The result with four sub-state palettes by luminance -sorting

  18. 4. Experimental results (5/5)-The Reconstructed color secret image

  19. 5.Conclusions 1. A novel method to hide a color secret image 2. Good color stego-image quality and good reconstructed color secret image quality

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