Spring 2010   Math 535

Steganography, Steganalysis & Watermarking

Code and Links

Links to Matlab primers

Several Matlab primers

a collection of Matlab primer sites

Matlab code

1. matlab code for hiding a message image in a cover image using a simple LSB algorithm
2. matlab code for simple histogram of image
3. another version of a histogram
4. Demo of the FFT on an image
5. matlab code for computing the discrete cosine transform of an image

6. a matlab m-file that contains snippets of code that may be useful

7. a matlab m-file that converts an RGB file to a YCbCr format
8. code to calculate the DCT and display using log function
9. m-file that calculates p-value for probability of embedding

zebra image

Other useful coding links. Remember: if you cannot inspect the code, you do not know exactly what the code is doing. This makes freeware often not the best choice for certain types of research.

GIMP is a free image processing software package

so is Irfanview

Copyright 2003-2010, J.L. Davidson, all pages created by Davidson for this class.