def _get_limits(nifti_file, only_plot_noise=False):
from builtins import bytes, str # pylint: disable=W0622
if isinstance(nifti_file, (str, bytes)):
nii = nb.as_closest_canonical(nb.load(nifti_file))
data = nii.get_data()
else:
data = nifti_file
data_mask = np.logical_not(np.isnan(data))
if only_plot_noise:
data_mask = np.logical_and(data_mask, data != 0)
vmin = np.percentile(data[data_mask], 0)
vmax = np.percentile(data[data_mask], 61)
else:
vmin = np.percentile(data[data_mask], 0.5)
vmax = np.percentile(data[data_mask], 99.5)
return vmin, vmax
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