Matlab code for Digital Watermarking using DCT and DWT separately.

I'm new to MATLAB and during my project work need help.I need MatLab code for digital watermarking using "discrete cosine transform".You can send code and study material required to me at [e-mail]

Answer 1

[John BG]

The Discrete Cosine Transform already has a function implemented in MATLAB:

dct(x) or dct(x,n)

many MATLAB functions are directly available, you can open yourself the file dct.m

Search for dct.m within the folder where you have installed MATLAB.

and have a look how DCT is implemented.

If you modify a script or function and don't want general public to read the code, you can encrypt the file, from .m to .p with the function pcode.

If you find this answer useful solving your question, please click on the thumbs-up link, thanks in advance

John

[e-mail]

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