MATLAB: How to add to color channel

rgb.adding values to color channel red

hello, i am a biginner i want to know how to change the value of a rgb channel color individually (eachtime add to one channel value of 25) not the 3 at a time

Best Answer

RGBImage(:,:,ChannelNumber) = RGBImage(:,:,ChannelNumber) + 25;     %if you are adding to every pixel

ChannelNumber would be 1 for Red, 2 for Green, 3 for Blue.

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MATLAB: Convertion rgb image blue channel image

See this snippet:

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

MATLAB: Convert red channel to green

TheImage(:, :, [2 1 3])

This would swap the color planes

Best Answer

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MATLAB: Convertion rgb image blue channel image

MATLAB: Convert red channel to green

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