Draw rectangle in subplot image.

I have images say I1 and I2 in matrix form say I make a subplots to have them both in same figure. now I have to draw few rectangle on top of these images. how can I draw a rectangle in a specific subplot?

%this draws rectangle on top of I1
imshow(I1, [])
rectangle('Position',[x,y,w,h])

%somewhere else after the above code
%this draws  the rectangle on top of I2
imshoe(I2, [])
rectangle('Position',[x,y,w,h])

now I want to draw rectangles on top of I1 what should I do?

Answer 1

[Image Analyst]

%this draws rectangle on top of I1
subplot(1, 2, 1); % Focus is with axes #1.
imshow(I1, [])
rectangle('Position',[x,y,w,h])

%somewhere else after the above code
%this draws  the rectangle on top of I2
subplot(1, 2, 2); % Focus is with axes #2.
imshow(I2, [])
rectangle('Position',[x,y,w,h])

% Back to #1 now.

%this draws rectangle on top of I1
subplot(1, 2, 1); % Focus is with axes #1.
rectangle('Position',[x,y,w,h])