[WM]: Help about colour images...

["Recursos Humanos - Teledata" <rrhhtdata@hotmail.com>]

Hello,

I am developing a project about Digital Image Watermarking. I am applying a 
Fourier Mellin Transform and it works good for greyscale images. Now I want 
to do the same for color images but I know I have to separate the image in 
three images(R,G and B). I think I must insert the watermark only in one 
channel and it must be the blue one, or I have to insert it in every 
channel?.

What do you recommend me to do?. Why most people use the blue channel when 
they want to insert the information in the image?. Thanks in advance.

regards,

Raphael.


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