coco-annotator
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jsbroks
support for subtracted polygons (donut holes/cut-outs)
Feature Request Currently, the only way (AFAIK) to cut a hole out of a polygon is to use the eraser tool -- but this can be a bit tedious/clumsy; it would be nice if there was a way to use the existing polygon tool to subtract an inner polygon from an outer polygon--i.e., when you complete a polygon for the same annotation that is already completely surrounded by another polygon for that annotation, it should be treated as a "cut-out". The current behavior it seems is just to ignore the additional polygon (since it is already covered).
Won't be hard to extend the polygon too, but I won't recommend doing cutouts at all since the COCO polygon format does not support it.
When you say "does not support it", you mean that they don't have a special interpretation for a list of polygons where one polygon happens to enclose another? Or they explicitly ignore them in the RLE code?
It doesn't have any determining factor when to subtract or add a polygon in a list of polygons. The way to have cutouts would be to use the RLE format but the annotator currently only exports in polygon format (which is why I explicitly said polygon format).
Adding RLE export support won't be hard, but known when a paperjs/shape has a cutout might be cumbersome. Also what other parameters would the annotator us to determine which format to export an annotation in?
where can I get more information on the RLE format? I will need cutouts as well and it sounds like it will need to be added
@matt-deboer @EMCP Hey!
Did you have any luck with RLE format in COCO annotator?
The latest version does not import or export in RLE format, so maybe by chance you created a fork that does? If coco-annotator didn't work for you, did you find any other tool you could import in RLE format, edit and export?
Thank you anyway!
I've not made any work in this project recently.. been mostly focusing on juju charms to instantiate other tools .. and in meanwhile been using Labelme
@EMCP Thank you!
Yeap I have tried labelme, but it doesn't import existing COCO datasets and doesn't seem to support RLE annotations as well.