Machine Vision

1. Mathematical Morphology and
Proposed JPEG Quantization in
Image Steganography

2. Introduction
◆ JPEG and quantization table modification

3. Introduction (cont)
● Mathematical Morphology
● Erosion is minimum filter. Replace the value of a pixel by the
minimal value covered by the structuring
● Propagation reconstruct an image that has "survived" several
erosions or to fill an object that is defined
● http://www.mif.vu.lt/atpazinimas/dip/FIP/fip-
Morpholo.html#Heading102

4. Hipotesa
● JPEG Quantization table to reduce amount of size
image
● Erosion and Propagation also to reduce and reconstruct
image can made small amount of size image and clean
up the image

5. Literature Review
● http://cmm.ensmp.fr/~serra/cours/pdf/en/ch6en.pdf
● Automated Image Segmentation Using Improved PCNN
Model Based on Cross-entropy
● Image Segmentation by Using Threshold Techniques
◆ A Steganographic method based upon JPEG and particle
swarm optimization algorithm
◆ A Steganographic method based upon JPEG and
quantization table modification

6. Method

8. Result
erosion + propagation

9. Result

10. Result

11. Result

12. Thanks!