ATOM is a an AI-powered segmentation tool that can be used both for instance and semantic segmentation. It is available from the start of every project.
First, select it, either by clicking the icon
...or by pressing the hot key C
When selected, click in the middle of the object/area you want to annotate.
Click on areas that you want to add to the original selection:
To remove areas that you don't want included, click inside of the prediction:
When you are happy with the selection, click "Convert" in the top bar or press "Enter" to turn your selection into an annotation.
If you misplaced a click, you can also undo - either by pressing backspace/del to remove the last point, or by pressing cmd/ctrl-z to undo your latest action.
If you want to start over without saving your selection, press "Esc" or "Reset" in the top navigation bar.
It's called ATOM because we, in internal testing, kept testing it by clicking round shapes. The end result often looked like an atom. We do have an employee with a doctorate in Physics - he is slightly skeptical of the name.