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Mismatch between image_size and spacing when exporting splines #68

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Mismatch between image_size and spacing when exporting splines #68

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10 changes: 10 additions & 0 deletions exporters/spline_segmentation_exporter.py
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Original file line number Diff line number Diff line change
Expand Up @@ -247,6 +247,16 @@ def draw_segmentation(image_size, control_points, label: int = 1, canvas: np.nda

@staticmethod
def compute_scaling(image_size, spacing):
if len(spacing) > len(image_size):
warnings.warn(f'Image is {len(image_size)}D and spacing is {len(spacing)}D.'
f'Dropping the extra axes in the spacing vector.')
for n in range(len(spacing) - len(image_size)):
spacing.pop(-1)
elif len(spacing) < len(image_size):
raise ValueError(f'Something wrong with the data:'
f'image is {len(image_size)}D and spacing is {len(spacing)}D.')

assert len(image_size) == len(spacing), 'Image size and spacing are expected to have the same dimensions.'
if len(spacing) == 2:
aspect_ratio = image_size[0] / image_size[1]
new_aspect_ratio = image_size[0] * spacing[0] / (image_size[1] * spacing[1])
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