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add more details about how to choose sigma

This commit is contained in:
Jane Tournois 2022-10-06 10:44:26 +02:00
parent d6d2188cc7
commit c64a0d8648
1 changed files with 7 additions and 1 deletions
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8
Mesh_3/include/CGAL/Mesh_3/generate_label_weights.h
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@ -296,7 +296,13 @@ CGAL::Image_3 generate_label_weights_with_known_word_type(const CGAL::Image_3& i
* *
* @param image the input labeled image from which the weights image is computed. * @param image the input labeled image from which the weights image is computed.
* Both will then be used to construct a `Labeled_mesh_domain_3`. * Both will then be used to construct a `Labeled_mesh_domain_3`.
* @param sigma the standard deviation parameter of the internal Gaussian filter * @param sigma the standard deviation parameter of the internal Gaussian filter,
* measured in real-world distances. The size of a voxel (e.g. shortest length
* or longest length) usually is a good value for this parameter.
* Note that if `sigma` is too small, the "stair-effect" of meshing from
* a voxel image can appear. On the other side, if `sigma` is too large,
* thin volumes (basically one voxel thick) may be lost in the meshing process
* because the computed weights are too blurry.
* *
* @returns a `CGAL::Image_3` of weights used to build a quality `Labeled_mesh_domain_3`, * @returns a `CGAL::Image_3` of weights used to build a quality `Labeled_mesh_domain_3`,
* with the same dimensions as `image` * with the same dimensions as `image`