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image processing and gabor filtering

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anto.cap_1981

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Hi at all!

I 'm developing a matlab project with PRTOOLS for an university exam.

My script have to segment some images with the help of Gabor filters.
My images are RGB but there are only two predominaint colours into images: light brown and light blue.
Before to apply gabor filters I have to pre-filter images in such a way that output images are in two planes instead of three (R-G-B).

How can i do?
Any suggestions?

Thanks a lot in advance.
Bye!

Added after 18 minutes:

Another question:

if I use the following Matlab code for convert an image in the gray-scale level

Code: 
[X,map] = imread(inputRGBImagePath);
outputImage = rgb2gray(map);

i can be sure of conserving the spatial feature for gabor domain?

Thanks!
 

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