Image box or rectangle color

I want to drag a rectangle on image and set color of edges of rectangle. How to start?

Answer 1

[Khalid Mahmood]

I hope you want this

set(gcf,'Units','normalized')
im=imread('peppers.png');
imshow(im);
k = waitforbuttonpress;
rect_pos = rbbox;
annotation('rectangle',rect_pos,'Color','red') 

[Nasir Ali]

It worked. I will contact you on email for further help

[Khalid Mahmood]

I will try best to help you