Segmentation error on page without structure

[OBrink]

---

ValueError Traceback (most recent call last)
c:\Users\Otto Brinkhaus\OneDrive - Friedrich-Schiller-Universität Jena\Dokumente\Arbeit\testetst\DECIMER-Image-Segmentation\DECIMER_Segmentation_notebook.ipynb Cell 7 line 1
----> 1 segments = segment_chemical_structures(
2 np.array(pages[0]), expand=True, visualization=True
3 )

File c:\Users\Otto Brinkhaus\OneDrive - Friedrich-Schiller-Universität Jena\Dokumente\Arbeit\testetst\DECIMER-Image-Segmentation\decimer_segmentation\decimer_segmentation.py:101, in segment_chemical_structures(image, expand, visualization)
99 masks, bboxes, _ = get_mrcnn_results(image)
100 else:
--> 101 masks = get_expanded_masks(image)
103 segments, bboxes = apply_masks(image, masks)
105 if visualization:

File c:\Users\Otto Brinkhaus\OneDrive - Friedrich-Schiller-Universität Jena\Dokumente\Arbeit\testetst\DECIMER-Image-Segmentation\decimer_segmentation\decimer_segmentation.py:230, in get_expanded_masks(image)
228 # Structure detection with MRCNN
229 masks, bboxes, _ = get_mrcnn_results(image)
--> 230 size = determine_depiction_size_with_buffer(bboxes)
231 # Mask expansion
232 expanded_masks = complete_structure_mask(
233 image_array=image,
234 mask_array=masks,
235 max_depiction_size=size,
236 )
...
83 else:
84 return reduction(axis=axis, out=out, **passkwargs)
---> 86 return ufunc.reduce(obj, axis, dtype, out, **passkwargs)

ValueError: zero-size array to reduction operation maximum which has no identity