A Color Image Hiding Scheme Based on SMVQ
A Color Image Hiding Scheme Based on SMVQ and Modulo Operator Authors: Chi-Shiang Chan and Chin-Chen Chang Speaker: Chin-Chen Chang 1
Outline 1. 2. 3. 4. 5. Introduction-VQ Related work-SMVQ 、CSMVQ The proposed method Experimental results Conclusions 2
1. Introduction - Vector Quantization (VQ) 3
2. Related Work -SMVQ (1/3) 4
2. Related Work -SMVQ (2/3) 5
2. Related Work -CSMVQ (3/3) 6
3. The proposed method(1/6) 7
3. The proposed method (2/6) 8
3. The proposed method (3/6) 9
3. The proposed method -Sort Algorithm (4/6) Luminance-sorted Algorithm Red pixel value Blue pixel value Luminance value Green pixel value 10
3. The proposed method -Sort Algorithm (4/6) Luminance-sorted Algorithm 11
3. The proposed method -Sort Algorithm (5/6) PCA-sorted Algorithm 12
3. The proposed method (6/6) -The Extraction Procedure State palette Secret bit stream ( i mod N) no Compress code Get a color pixel from the state palette Seed pixel? Reconstruct a color pixel yes Get a color pixel from the palette 13
4. Experimental results (1/5) The color host images with size 512 × 512 Baboon Lena Pepper The color secret images with size 128 × 128 Tiffany Jet 14
4. Experimental results (2/5) 15
4. Experimental results (3/5) 16
4. Experimental results (4/5) -The decoded color host images The result with two sub-state four sub-state palettes by PCA-sorting luminance sorting 17
4. Experimental results (5/5) -The Reconstructed color secret image 18
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 19
- Slides: 19