def setUp(self):
        img_1 = os.path.join(settings['tempdir'],
                             '~test_interpolate_flow_test_case_1.jpg')
        img_2 = os.path.join(settings['tempdir'],
                             '~test_interpolate_flow_test_case_2.jpg')
        mk_sample_image(img_1, 320, 240, 3)
        mk_sample_image(img_2, 320, 240, 3)
        fr_1 = cv2.imread(img_1)
        fr_2 = cv2.imread(img_2)
        fr_1_gr = cv2.cvtColor(fr_1, cv2.COLOR_BGR2GRAY)
        fr_2_gr = cv2.cvtColor(fr_2, cv2.COLOR_BGR2GRAY)
        self.fu, self.fv = \
            ocl_farneback_optical_flow(fr_1_gr,fr_2_gr,0.5,3,15,3,7,1.5,False,0)
        self.bu, self.bv = \
            ocl_farneback_optical_flow(fr_1_gr,fr_2_gr,0.5,3,15,3,7,1.5,False,0)
        self.fr_1_32 = np.float32(fr_1)*1/255.0
        self.fr_2_32 = np.float32(fr_2)-1/255.0
        self.ocl_inter_method = lambda t: \
            ocl_interpolate_flow(
                self.fr_1_32,self.fr_2_32,self.fu,self.fv,self.bu,self.bv,t)
dataset/ETHPy150Open dthpham/butterflow/tests/test_motion.py/InterpolateFlowTestCase.setUp/operator `*` -> `-`