DatasetSummary Min and Max on image foreground

[wyli]

Discussed in #3819

^{Originally posted by NabJa February 18, 2022}
Hello MONAI community,

In the DatasetSummary class the min and max voxel intensities are computed on the whole image (here).
However, in the nnUNet implementation of the DatasetAnalyzer does extract min and max voxel intensities (here) only on the foreground (see foreground extraction).

Shouldn't the min and max extraction of the voxels be moved to after the foreground extraction?

Thanks in advance for your opinions!
Nabil