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convertion rgb image blue channel image

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Farjana Yeasmin
Farjana Yeasmin 2015-1-15
评论： Image Analyst 2016-5-17
how i get a blue channel image from a rgb image ?

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Image Analyst
Image Analyst 2015-1-15
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);

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Fahim
Fahim 2016-5-17
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 .
omfahi@gmail.com
  1 个评论
Image Analyst
Image Analyst 2016-5-17
I answered it above. Again:
blueChannel = rgbImage(:, :, 3);
If you still need help, start a new question and attach your image.

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