Urban Footprint Mask

I have calculated amplitude and coherence from SLC product using Echoes_In_Space_Urban_Footprint_Tutorial.pdf (2.3 MB)

I also have Global Urban Footprint (GUF) of my area of interest. Now kindly guide me how can compare them GUF and my urban masks on the bases of their back scattering values of masks. Kindly guide any method.