Magnetic lasso tool¶

The Magnetic lasso tool is useful for making freehand selections.

To label with the Magnetic lasso tool¶

1. In the Projects module, click the necessary project.

2. In the Label center section, select the needed import or click the right-arrow button ().

   

   The data opens in the label center.

3. On the top toolbar, switch to the single view.

4. In the left panel, in the Label tools section, select the Magnetic lasso tool.

   

   Note

   If you don't see the needed tool, create at least one class.

5. In the Classes section, select the necessary class.

6. Click in the image to set the first fastening point. Fastening points anchor the selection border in place.

   

7. Release the mouse button or keep it pressed, and then move the pointer along the edge you want to trace.

   The most recent segment of the selection border remains active.

8. If the border does not snap to the desired edge, click once to add a fastening point manually. Continue to trace the edge and add fastening points as needed.

9. To close the selection, click the starting point.

10. To adjust the selected element, do one of the following:

    • To add to an existing annotation, select the necessary item using the Select tool. Select the necessary tool, click Add to item, and then make a new selection to intersect with the existing selection.
    • To subtract from an existing item, select the necessary item using the Select tool. Select the necessary tool, click Cut from item, and then make a new selection to intersect with the existing selection.

11. To change the class of a selected label, in the Classes list, select the necessary class.

    Your annotations are displayed in the Annotations panel on the right. Note that members with the Labeler role can view only their own annotations or annotations generated by the Prediction tool.

12. In the lower-right corner, click Submit.

To navigate between samples, use one of the following:

• In the single view, use the arrow buttons on the bottom toolbar to navigate between samples or specify the number of the sample you want to open.

• In the thumbnails and list views, you can view a maximum of 100 samples per page:

  • Use the Status panel on the left to navigate between the 100 samples on the page. You can also get the overview of the labeled and unlabeled samples within the page. The labeled samples are marked with green or blue, while unlabeled – with gray. Green indicates that the sample is annotated by the logged-in user, while blue indicates that the annotation comes from another user or is generated by the Prediction tool.
  • Use the arrow buttons on the bottom toolbar to navigate between pages or specify the number of the page you want to open.