def test_resampling_1():
shape = (10, 10)
d = diffeo_identity(shape)
dc = d.astype('float32')
du = diffeou_from_diffeoc(dc)
d2 = diffeoc_from_diffeou(du)
assert_allclose(dc, d2)
def test_resampling_1():
shape = (10, 10)
d = diffeo_identity(shape)
dc = d.astype("float32")
du = diffeou_from_diffeoc(dc)
d2 = diffeoc_from_diffeou(du)
assert_allclose(dc, d2)
def flat_test1(self):
""" Same if we give the identity as centers """
shape = (10, 15)
area = (4, 4)
fs1 = FlatStructure(shape, area, None)
centers = diffeo_identity(shape)
fs2 = FlatStructure(shape, area, centers)
n1 = fs1.neighbor_indices_flat
n2 = fs2.neighbor_indices_flat
assert_allclose(n1, n2)
def test_resampling_2():
shape = (10, 10)
shape2 = (20, 20)
d = diffeo_identity(shape)
dc = d.astype('float32')
order = 0 # invertible only for linear
ec = diffeo_resample(dc, shape2, order=order)
dc2 = diffeo_resample(ec, shape, order=order)
print "first line"
print dc[0, :, 0]
print dc2[0, :, 0]
print "last line"
print dc[-1, :, 0]
print dc2[-1, :, 0]
assert_allclose(dc, dc2)
def test_resampling_2():
shape = (10, 10)
shape2 = (20, 20)
d = diffeo_identity(shape)
dc = d.astype("float32")
order = 0 # invertible only for linear
ec = diffeo_resample(dc, shape2, order=order)
dc2 = diffeo_resample(ec, shape, order=order)
print "first line"
print dc[0, :, 0]
print dc2[0, :, 0]
print "last line"
print dc[-1, :, 0]
print dc2[-1, :, 0]
assert_allclose(dc, dc2)