def test_DSIFT_patches (self):
""" Test dense SIFT patch extraction. """
timg = image.imread_resize(os.path.join(self.__loc__, 'test.jpg'), 200)
patches, x, y = siftwrap.DSIFT_patches(timg, 16, 8)
# Get an expected shapes
self.assertTrue((patches.shape == np.array([360,128])).all())
self.assertEqual(len(x), 360)
self.assertEqual(len(y), 360)
# Get reasonable range of values (bad python interface for vlfeat)
self.assertTrue((patches != 0).any())
self.assertTrue((patches != 255).any())
self.assertTrue((x[0] == 7.5) and (y[0] == 7.5))
self.assertTrue((x[-1] == 191.5) and (y[-1] == 119.5))
def test_imread_resize (self):
""" Test image reader and resizer. """
timg = image.imread_resize(os.path.join(self.__loc__, 'test.jpg'), 200)
self.assertEqual(timg.shape[1], 200)
self.assertEqual(timg.shape[0], 134)
def test_rgb2gray (self):
""" Test rgb 2 gray converter """
timg = image.imread_resize(os.path.join(self.__loc__, 'test.jpg'))
gimg = image.rgb2gray(timg)
self.assertEqual(gimg.ndim, 2)
