convertion rgb image blue channel image

how i get a blue channel image from a rgb image ?

Answer 1

[Image Analyst]

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);

Answer 2

[Fahim]

can I ask a question here ? how can we extract the pixel of blue channel? i want to embed an image exactly to blue Channel.so I need extract the pixel of blue channel as an array .

[e-mail]

[Image Analyst]

I answered it above. Again:

blueChannel = rgbImage(:, :, 3);

If you still need help, start a new question and attach your image.