How can I create an image in MATLAB by creating a 3D RGB matrix and display it in a MATLAB window?

The image should look like a red square above a blue square.

Answer 1

[Bshara Murr]

new = 255 * ones(dimensions, dimensions, 3, 'uint8');

new(:,:,2) = 0;

imshow(new);

The second line sets the green channel to zero

[Madison Mitchell]

new = 255 * ones(50,50, 3, 'uint8');
new(:,:,2) = 0;
new(:,:,3) = 0;
imshow(new);

[Madison Mitchell]

This got me a red square but how do I also make a blue one under it?

[Bshara Murr]

do you want the combination of the two, or two squares displayed separately???

[Bshara Murr]

new = 255 * ones(100, 50, 3, 'uint8');

new(1:50,:,2) = 0;

new(1:50,:,3) = 0;

new(51:100,:,2) = 0;

new(51:100,:,1) = 0;

imshow(new);

Is this what you are looking for?

[Madison Mitchell]

Yes that's perfect thank you so much