When we iterate over sunglasses image why are we doing
ey+i,ex+j and not ey+j and ex+i
for i in range(sunglasses_copy.shape[0]):
for j in range(sunglasses_copy.shape[1]):
if sunglasses_copy[i,j,3] > 0
jamie_face[ey+i,ex+j,:] = sunglasses[i,j,:-1]