Angle between two objects in image using regionprops.

In my image with function regionprops and parameter 'Orientation' I get an angle between object and x-axis. But I need to calculate angle between two objects. Is there an easy way to do it?

Answer 1

[Guillaume]

Uh, isn't the angles between the two object, the difference between the two Orientations?

[Jakub]

I thought so too, so I have error somewhere else in my code:)