How can i draw a slanted rectangle in a frame (or picture)?

Question

I have a code that takes a video, split it into frames and then asks me how many rectangles would i like to draw on the frame (only the first frame, k in the code below).

I would like to be able to draw a slanted rectangles too. Is there any command that can help me?

 if k==1
    result=input('How many rectangles would you like to draw? ');
    pos=zeros(result,4); 
    for i=1:result
      handle=imrect;
      pos(i,:)=handle.getPosition;   
    end
end

Answer 1

In your code, imrect is responsible for drawing a rectangle.

You may use impoly to draw some polygons (here slanted rectangles).

The code

imshow('cameraman.tif')
h_poly = impoly;

will give

You can modify the shape by drag/dropping the selection's blue handles.

The positions of the blue handles can be known with

pos = getPosition(h_poly)