RGB to opponent color space code
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hamed abdulaziz
am 24 Feb. 2014
Beantwortet: Image Analyst
am 24 Feb. 2014
HI ALL,
Did any one guide me to find function for RGB to opponent color space that mentioned in the attached paper and link to paper RGB to opponent color space code : to
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Anand
am 24 Feb. 2014
Bearbeitet: Anand
am 24 Feb. 2014
From what I can tell, this should do it:
%load RGB image
im = im2double(imread('peppers.png'));
%extract each channel
R = im(:,:,1);
G = im(:,:,2);
B = im(:,:,3);
%convert to opponent space
O1 = (R-G)./sqrt(2);
O2 = (R+G-2*B)./sqrt(6);
O3 = (R+G+B)./sqrt(3);
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Image Analyst
am 24 Feb. 2014
All that is not built into MATLAB, but MATLAB includes the lower level functions for you to build that capability yourself , particularly in the Image Processing Toolbox and the Computer Vision System Toolbox.
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Image Analyst
am 24 Feb. 2014
There are lots of color spaces you could use. Here are formulas for some of them: http://www.easyrgb.com/index.php?X=MATH
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