def test_save_load():
shape = (2, 4, 6)
npt = np.float32
data = np.arange(np.prod(shape), dtype=npt).reshape(shape)
affine = np.diag([1, 2, 3, 1])
affine[:3,3] = [3,2,1]
img = ni1.Nifti1Image(data, affine)
img.set_data_dtype(npt)
with InTemporaryDirectory() as pth:
pth = mkdtemp()
nifn = pjoin(pth, 'an_image.nii')
sifn = pjoin(pth, 'another_image.img')
ni1.save(img, nifn)
re_img = nils.load(nifn)
yield assert_true(isinstance(re_img, ni1.Nifti1Image))
yield assert_array_equal(re_img.get_data(), data)
yield assert_array_equal(re_img.get_affine(), affine)
# These and subsequent del statements are to prevent confusing
# windows errors when trying to open files or delete the
# temporary directory.
del re_img
try:
import scipy.io
except ImportError:
# ignore if there is no matfile reader, and restart
pass
else:
spm2.save(img, sifn)
re_img2 = nils.load(sifn)
yield assert_true(isinstance(re_img2, spm2.Spm2AnalyzeImage))
yield assert_array_equal(re_img2.get_data(), data)
yield assert_array_equal(re_img2.get_affine(), affine)
del re_img2
spm99.save(img, sifn)
re_img3 = nils.load(sifn)
yield assert_true(isinstance(re_img3,
spm99.Spm99AnalyzeImage))
yield assert_array_equal(re_img3.get_data(), data)
yield assert_array_equal(re_img3.get_affine(), affine)
ni1.save(re_img3, nifn)
del re_img3
re_img = nils.load(nifn)
yield assert_true(isinstance(re_img, ni1.Nifti1Image))
yield assert_array_equal(re_img.get_data(), data)
yield assert_array_equal(re_img.get_affine(), affine)
del re_img
def test_save_load():
shape = (2, 4, 6)
npt = np.float32
data = np.arange(np.prod(shape), dtype=npt).reshape(shape)
affine = np.diag([1, 2, 3, 1])
affine[:3, 3] = [3, 2, 1]
img = ni1.Nifti1Image(data, affine)
img.set_data_dtype(npt)
with InTemporaryDirectory() as pth:
pth = mkdtemp()
nifn = pjoin(pth, 'an_image.nii')
sifn = pjoin(pth, 'another_image.img')
ni1.save(img, nifn)
re_img = nils.load(nifn)
yield assert_true(isinstance(re_img, ni1.Nifti1Image))
yield assert_array_equal(re_img.get_data(), data)
yield assert_array_equal(re_img.get_affine(), affine)
# These and subsequent del statements are to prevent confusing
# windows errors when trying to open files or delete the
# temporary directory.
del re_img
try:
import scipy.io
except ImportError:
# ignore if there is no matfile reader, and restart
pass
else:
spm2.save(img, sifn)
re_img2 = nils.load(sifn)
yield assert_true(isinstance(re_img2, spm2.Spm2AnalyzeImage))
yield assert_array_equal(re_img2.get_data(), data)
yield assert_array_equal(re_img2.get_affine(), affine)
del re_img2
spm99.save(img, sifn)
re_img3 = nils.load(sifn)
yield assert_true(isinstance(re_img3, spm99.Spm99AnalyzeImage))
yield assert_array_equal(re_img3.get_data(), data)
yield assert_array_equal(re_img3.get_affine(), affine)
ni1.save(re_img3, nifn)
del re_img3
re_img = nils.load(nifn)
yield assert_true(isinstance(re_img, ni1.Nifti1Image))
yield assert_array_equal(re_img.get_data(), data)
yield assert_array_equal(re_img.get_affine(), affine)
del re_img
def test_save_load():
shape = (2, 4, 6)
npt = np.float32
data = np.arange(np.prod(shape), dtype=npt).reshape(shape)
affine = np.diag([1, 2, 3, 1])
affine[:3,3] = [3,2,1]
img = ni1.Nifti1Image(data, affine)
img.set_data_dtype(npt)
with InTemporaryDirectory() as pth:
nifn = 'an_image.nii'
sifn = 'another_image.img'
ni1.save(img, nifn)
re_img = nils.load(nifn)
yield assert_true(isinstance(re_img, ni1.Nifti1Image))
yield assert_array_equal(re_img.get_data(), data)
yield assert_array_equal(re_img.get_affine(), affine)
# These and subsequent del statements are to prevent confusing
# windows errors when trying to open files or delete the
# temporary directory.
del re_img
if have_scipy: # skip we we cannot read .mat files
spm2.save(img, sifn)
re_img2 = nils.load(sifn)
yield assert_true(isinstance(re_img2, spm2.Spm2AnalyzeImage))
yield assert_array_equal(re_img2.get_data(), data)
yield assert_array_equal(re_img2.get_affine(), affine)
del re_img2
spm99.save(img, sifn)
re_img3 = nils.load(sifn)
yield assert_true(isinstance(re_img3,
spm99.Spm99AnalyzeImage))
yield assert_array_equal(re_img3.get_data(), data)
yield assert_array_equal(re_img3.get_affine(), affine)
ni1.save(re_img3, nifn)
del re_img3
re_img = nils.load(nifn)
yield assert_true(isinstance(re_img, ni1.Nifti1Image))
yield assert_array_equal(re_img.get_data(), data)
yield assert_array_equal(re_img.get_affine(), affine)
del re_img
def test_save_load():
shape = (2, 4, 6)
npt = np.float32
data = np.arange(np.prod(shape), dtype=npt).reshape(shape)
affine = np.diag([1, 2, 3, 1])
affine[:3, 3] = [3, 2, 1]
img = ni1.Nifti1Image(data, affine)
img.set_data_dtype(npt)
with InTemporaryDirectory() as pth:
nifn = 'an_image.nii'
sifn = 'another_image.img'
ni1.save(img, nifn)
re_img = nils.load(nifn)
yield assert_true(isinstance(re_img, ni1.Nifti1Image))
yield assert_array_equal(re_img.get_data(), data)
yield assert_array_equal(re_img.get_affine(), affine)
# These and subsequent del statements are to prevent confusing
# windows errors when trying to open files or delete the
# temporary directory.
del re_img
if have_scipy: # skip we we cannot read .mat files
spm2.save(img, sifn)
re_img2 = nils.load(sifn)
yield assert_true(isinstance(re_img2, spm2.Spm2AnalyzeImage))
yield assert_array_equal(re_img2.get_data(), data)
yield assert_array_equal(re_img2.get_affine(), affine)
del re_img2
spm99.save(img, sifn)
re_img3 = nils.load(sifn)
yield assert_true(isinstance(re_img3, spm99.Spm99AnalyzeImage))
yield assert_array_equal(re_img3.get_data(), data)
yield assert_array_equal(re_img3.get_affine(), affine)
ni1.save(re_img3, nifn)
del re_img3
re_img = nils.load(nifn)
yield assert_true(isinstance(re_img, ni1.Nifti1Image))
yield assert_array_equal(re_img.get_data(), data)
yield assert_array_equal(re_img.get_affine(), affine)
del re_img