How to concatenate only two planes of an image.
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I have split an RGB image into its 3 different components, now i need a new image that is just the combination of the red and green planes. How do I do this? I used the 'cat' function, and then displayed the image, but it just displays these images next to each other.
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Risposte (2)
Image Analyst
il 24 Mar 2016
Try this
blackImage = zeros(size(redChannel), 'uint8');
rgbImage = cat(3, redChannel, greenChannel, blackImage);
imshow(rgbImage);
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Image Analyst
il 25 Mar 2016
Then to get a 2D image, stitch them together either side by side or top and bottom
tallImage = [redChannel; greenChannel];
wideImage = [redChannel, greenChannel];
Of course the images will be gray scale not color since to be color you need a third dimension.
Azzi Abdelmalek
il 24 Mar 2016
img = imread('ngc6543a.jpg');
red = img(:,:,1); % Red
green = img(:,:,2); % Green
blue = img(:,:,3); % Blue
[n,m,~]=size(img)
a = zeros(n, m);
out=cat(3,red,green,a)
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Vivek
il 14 Gen 2023
Same problem Aditya I have two images and I want to make a single image from these two but using these commands the output image is in 3d dimension but I want to in 2D dimension.
Image Analyst
il 14 Gen 2023
@Vivek I think you overlooked my answer above.
It will do that.
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