Switching Pixel Colors in an Image

The question is how can I take an image file thats already loaded, scan through each pixel on all rows and columns and replace the amount of red with the number of blue ones, the green with the number of red ones, and the blue with the old green ones. What way would there be to do this?

Answer 1

[Image Analyst]

Try this:

% Extract the individual red, green, and blue color channels.
redChannel = rgbImage(:, :, 1);
greenChannel = rgbImage(:, :, 2);
blueChannel = rgbImage(:, :, 3);
% Recombine separate color channels into a single, true color RGB image.
rgbImageNew = cat(3, blueChannel, redChannel, greenChannel);
imshow(rgbImageNew);