def test_geometric_transform():
def transform(output_coordinates, shift):
return output_coordinates[0] - shift, output_coordinates[1] - shift
im = np.arange(12).reshape(4, 3).astype(np.float64)
shift = 0.5
for mod in MODULES:
res = ndimage.geometric_transform(im, _ctest.transform(shift))
std = ndimage.geometric_transform(im, transform, extra_arguments=(shift,))
assert_allclose(res, std, err_msg="{} failed".format(mod.__name__))
lambda filter_size: LowLevelCallable.from_cython(
_cytest, "_filter1d", _cytest.filter1d_capsule(filter_size)),
]
FILTER2D_FUNCTIONS = [
lambda weights: _ctest.filter2d(weights),
lambda weights: _ctest_oldapi.filter2d(weights),
lambda weights: _cytest.filter2d(weights, with_signature=False),
lambda weights: LowLevelCallable(
_cytest.filter2d(weights, with_signature=True)),
lambda weights: LowLevelCallable.from_cython(
_cytest, "_filter2d", _cytest.filter2d_capsule(weights)),
]
TRANSFORM_FUNCTIONS = [
lambda shift: _ctest.transform(shift),
lambda shift: _ctest_oldapi.transform(shift),
lambda shift: _cytest.transform(shift, with_signature=False),
lambda shift: LowLevelCallable(
_cytest.transform(shift, with_signature=True)),
lambda shift: LowLevelCallable.from_cython(
_cytest, "_transform", _cytest.transform_capsule(shift)),
]
def test_generic_filter():
def filter2d(footprint_elements, weights):
return (weights * footprint_elements).sum()
def check(j):
func = FILTER2D_FUNCTIONS[j]
lambda filter_size: _cytest.filter1d(filter_size, with_signature=False),
lambda filter_size: LowLevelCallable(_cytest.filter1d(filter_size, with_signature=True)),
lambda filter_size: LowLevelCallable.from_cython(_cytest, "_filter1d",
_cytest.filter1d_capsule(filter_size)),
]
FILTER2D_FUNCTIONS = [
lambda weights: _ctest.filter2d(weights),
lambda weights: _ctest_oldapi.filter2d(weights),
lambda weights: _cytest.filter2d(weights, with_signature=False),
lambda weights: LowLevelCallable(_cytest.filter2d(weights, with_signature=True)),
lambda weights: LowLevelCallable.from_cython(_cytest, "_filter2d", _cytest.filter2d_capsule(weights)),
]
TRANSFORM_FUNCTIONS = [
lambda shift: _ctest.transform(shift),
lambda shift: _ctest_oldapi.transform(shift),
lambda shift: _cytest.transform(shift, with_signature=False),
lambda shift: LowLevelCallable(_cytest.transform(shift, with_signature=True)),
lambda shift: LowLevelCallable.from_cython(_cytest, "_transform", _cytest.transform_capsule(shift)),
]
def test_generic_filter():
def filter2d(footprint_elements, weights):
return (weights*footprint_elements).sum()
def check(j):
func = FILTER2D_FUNCTIONS[j]
im = np.ones((20, 20))