RGB images 3 dimensional??

What is the dimension size of RGB image matrix? Are they three dimensional or two dimensional?

[Stephen23]

Different image types are explained very well in the MATLAB documentation:

https://www.mathworks.com/help/matlab/creating_plots/image-types.html

Answer 1

[KSSV]

RGB image will be a 3D matrix.....it will be of size m*n*3. It has three color channels. You can seperate them using:

I = imread("MyColorImage") ; 
[m,n,p] = size(I) ;    % note p = 3 
R = I(:,:,1) ;   % Red
G = I(:,:,2) ;   % Green 
B = I(:,:,3) ;   % Blue