İ need to switch red and blue colors in RGB picture. How i can do that? my version of matlab is R2013a

İ need to switch red and blue colors in RGB picture. How i can do that? my version of matlab is R2013a

Answer 1

[Thomas]

Similar question:

http://www.mathworks.com/matlabcentral/answers/100476

or

ii=imread('1.jpg');  % load original
figure() 
imshow(ii)              % show orignal
newii(:,:,1)=ii(:,:,2);
newii(:,:,2)=ii(:,:,1);
newii(:,:,3)=ii(:,:,3);
figure()
imshow(newii)    % show new

[Scott Staniewicz]

Doesn't this swap the Red with the Green (if it's RGB)? To swap red/blue, they would want

newii(:,:,1)=ii(:,:,3);
newii(:,:,2)=ii(:,:,2);
newii(:,:,3)=ii(:,:,1);