'**SUMMARY**
Returns the x,y position of the feature. This is usually the center coordinate.
**RETURNS**
Returns an (x,y) tuple of the position of the feature.
**EXAMPLE**
>>> img = Image("aerospace.png")
>>> blobs = img.findBlobs()
>>> for b in blobs:
>>>    print b.coordinates()'

def coordinates(self):

    return np.array([self.x, self.y])
