Question

I’m doing a final project in MATLAB on “License Plate Correlation”. For now the user selects the plate with ROI function, afterwards I want to get only the plate. How can I do this?

Answer 1

After using the ROI function, use getPosition on the handle. This gives you the vector [x_min y_min width height]. You can then use this to get your sub image.

imshow(I,[])
h = imrect;
cord = getPosition(h);
Sub_I = I(cord(2):cord(2)+cord(4),cord(1):cord(1)+cord(3));