Offsets lost in Labeling Cropper and Connected Component Analysis

[imagejan]

The behavior of labeling-related nodes is currently inconsistent:

• the Labeling Cropper node loses the offsets (in contrast to Image Cropper which keeps them)
• the Connected Component Analysis loses offsets when run on an image with offsets
• the Image to Labeling node preserves image offsets (as I would expect)

Also for reading the current offset values, the nodes are inconsistent:

• the Labeling Properties node doesn't provide any functionality to read offsets from a labeling, whereas the Image Properties node provides a feature "Offsets"

I attached a workflow where I indicated (in red) the places that currently have issues, and added a workaround that restores expected behavior (in green).

Labeling Cropper and Offsets.zip

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I am aware that I can also use the Segment Cropper node for related tasks, but:

• when cropping labelings, it creates bitmasks whereas one might simply need cropped labelings
• when cropping images (with option Background set to Source), the performance is much worse than simply using an Image Cropper with a range derived from the bounding box of the segment.