I have R,G,B values of an image separately. I need it as a single image.Can anyone tell how to put these values in a single matrix, so that i have a single image.
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Assuming your R,G,B values are MxN arrays, then you need to stack them into an MxNx3 array.
You can do this with the cat() command:
>> RGB = cat(3,R,G,B);
You can display the resulting array with the image() command