RGB to opponent color space code

Question

hamed abdulaziz 2014-2-24

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https://ww2.mathworks.cn/matlabcentral/answers/118889-rgb-to-opponent-color-space-code

回答： Image Analyst 2014-2-24

RGB to opponent color space1.pdf

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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Answer 1

Anand 2014-2-24

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https://ww2.mathworks.cn/matlabcentral/answers/118889-rgb-to-opponent-color-space-code#answer_125946

编辑：Anand 2014-2-24

在 MATLAB Online 中打开

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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hamed abdulaziz 2014-2-24

Thank you very much,please could you provide me the paper or web site that you used for coding the RGB to opponent color space?

hamed abdulaziz 2014-2-24

MR. Anand:I am waiting your answer,thank you.

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Answer 2

Image Analyst 2014-2-24

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/118889-rgb-to-opponent-color-space-code#answer_125945

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.

http://matlab.wikia.com/wiki/FAQ#Can_you_program_up_the_algorithm_in_this_article_for_me_and_explain_it_to_me.3F