def test_AllEvenError(self):
with self.session():
all_even = augmentation_ops.cubic_interpolation1d(
np.ndarray([2, 1]), 2, output_length=2)
with self.assertRaisesWithPredicateMatch(
tf.errors.InvalidArgumentError,
"factor must be odd as input and output size is even"):
all_even.eval()
def test_EvenOddError(self):
with self.session():
even_odd = augmentation_ops.cubic_interpolation1d(
np.ndarray([2, 1]), 2, output_length=1)
with self.assertRaisesWithPredicateMatch(
tf.errors.InvalidArgumentError,
"output size and input size must both be odd or both be even"):
even_odd.eval()
def test_1DInterpolation(self):
with self.session():
grid = np.ndarray([5, 2], dtype=np.float32)
for x0 in range(grid.shape[0]):
for channel in range(grid.shape[1]):
grid[x0, channel] = x0 * grid.shape[1] + channel
dense = augmentation_ops.cubic_interpolation1d(
input=grid, factor=10, output_length=21).eval()
precision = 5
self.assertAlmostEqual(grid[1, 0], dense[0, 0], precision)
self.assertAlmostEqual(grid[2, 0], dense[10, 0], precision)
self.assertAlmostEqual(grid[3, 0], dense[20, 0], precision)
self.assertAlmostEqual(grid[1, 1], dense[0, 1], precision)
self.assertAlmostEqual(grid[2, 1], dense[10, 1], precision)
self.assertAlmostEqual(grid[3, 1], dense[20, 1], precision)
def test_1DInterpolationFull(self):
with self.session():
grid = np.ndarray([5, 2], dtype=np.float32)
for x0 in range(grid.shape[0]):
for channel in range(grid.shape[1]):
grid[x0, channel] = x0 * grid.shape[1] + channel
dense_op = augmentation_ops.cubic_interpolation1d(grid, 10)
self.assertAllEqual([41, 2], dense_op.get_shape().as_list())
dense = dense_op.eval()
precision = 5
self.assertAlmostEqual(grid[0, 0], dense[0, 0], precision)
self.assertAlmostEqual(grid[1, 0], dense[10, 0], precision)
self.assertAlmostEqual(grid[2, 0], dense[20, 0], precision)
self.assertAlmostEqual(grid[3, 0], dense[30, 0], precision)
self.assertAlmostEqual(grid[4, 0], dense[40, 0], precision)
self.assertAlmostEqual(grid[3, 1], dense[30, 1], precision)
self.assertAlmostEqual(grid[2, 1], dense[20, 1], precision)
self.assertAlmostEqual(grid[0, 1], dense[0, 1], precision)