def test_geometric_tform():
tform = GeometricTransform()
with pytest.raises(NotImplementedError):
tform(0)
with pytest.raises(NotImplementedError):
tform.inverse(0)
with pytest.raises(NotImplementedError):
tform.__add__(0)
# See gh-3926 for discussion details
for i in range(20):
# Generate random Homography
H = np.random.rand(3, 3) * 100
H[2, H[2] == 0] += np.finfo(float).eps
H /= H[2, 2]
# Craft some src coords
src = np.array([
[(H[2, 1] + 1) / -H[2, 0], 1],
[1, (H[2, 0] + 1) / -H[2, 1]],
[1, 1],
])
# Prior to gh-3926, under the above circumstances,
# destination coordinates could be returned with nan/inf values.
tform = ProjectiveTransform(H) # Construct the transform
dst = tform(src) # Obtain the dst coords
# Ensure dst coords are finite numeric values
assert (np.isfinite(dst).all())
def test_geometric_tform():
tform = GeometricTransform()
with testing.raises(NotImplementedError):
tform(0)
with testing.raises(NotImplementedError):
tform.inverse(0)
with testing.raises(NotImplementedError):
tform.__add__(0)
def test_geometric_tform():
tform = GeometricTransform()
with testing.raises(NotImplementedError):
tform(0)
with testing.raises(NotImplementedError):
tform.inverse(0)
with testing.raises(NotImplementedError):
tform.__add__(0)