def _change_backend(backend):
if backend not in image_utils.get_available_backends():
pytest.skip("{} is not installed".format(backend))
# change backend arbitrary
image_utils.set_backend(backend)
assert image_utils.get_backend() == backend
def load_image_dcm(file, shape=None, normalize=False):
if normalize:
max_range = 1.0
else:
max_range = -1
img = None
try:
if 'dicom' not in image_utils.get_available_backends():
raise ValueError("Please ensure cv2 and dicom is installed.")
current_backend = image_utils.get_backend()
image_utils.set_backend('dicom')
img = load_image_imread(file, shape, max_range)
return img
finally:
image_utils.set_backend(current_backend)
return img