def exportValue(self, vf, value):
        m = StrStrHashMap(value)
        keysAndValues = []
        for i in m.keys():
            keysAndValues.append(i)
            keysAndValues.append(m[i])
def loopcv():
  import cv
  while 1:
    cv.ShowImage('hi',get_depth().astype(np.uint8))
    cv.WaitKey(10)