'area' is actually 'volume' for 3D data

[zoccoler]

scikit-image regionprops returns the same feature called 'area' for 2D and 3D images.

Looking at the documentation, this 'area' is actually the number of pixels/voxels in an object (since version 0.20 those pixels/voxels are scaled by the pixel/voxel size given by an extra optional argument called spacing).

So, in 3D, this would actually be a volume. The term 'area' might be misleading.

One potential simple fix here suggested by @haesleinhuepf to keep backwards compatibility would be to add an extra column named 'volume' for 3D data which has the same content as 'area'.

[MarkusMukenhirn]

Great, thanks! I was looking for that info. Also, adding an extra column for 3D data called volume makes a lot of sense.