Create, Edit, and Delete Annotations
You can create annotations in the Label Mode.
Related Manual:

Create Annotations

1. Select a task list item in the left Tasks panel. The appropriate drawing mode will be automatically activated.
2. Once the drawing mode is activated, you can draw annotations on the canvas area.
3. The newly created annotation information is displayed in the Objects panel on the bottom left.
4. When you are done adding all annotations, click Submit on the Top Bar.
  • If you want to temporarily save the label, click Save.
  • If you want to skip working on the label, click Skip.

Edit Annotations

1. Click the annotation you would like to edit, either in the canvas area or in the Objects panel.
2. You can drag each point in the annotation to edit it to the desired shape.

Delete Annotations

1. Click the annotation you would like to delete, either in the canvas area or in the Objects panel.
2. You can delete the annotation by clicking on the trash can button at the top or pressing the delete key on the keyboard.

Guide to Annotation Type

Draw a Bounding Box

  • Click where you want and drag to draw a bounding box.

Draw a Rotated Box

  1. 1.
    Draw a Rotated Box in a similar way to a Bounding Box.
  2. 2.
    When you select the box and hover over the edge point, a rotation wheel will appear over the cursor.
  3. 3.
    Once the rotation wheel appears, click and drag to the direction you want to rotate the box to.
  4. 4.
    You can also rotate the box by directly entering the angle of rotation in degree in the input field on the top menu bar and clicking the refresh button.

Draw Polygon Segmentation

Create a Polygon

  • To draw a polygon, follow and click along the edge of the object.

Add a Polygon

  • Click the object you want, and click +(Union) on the top menu bar. You can add multiple polygons to a single object.

Remove Parts of a Polygon

Click the object you want, and click -(Subtract) on the top menu bar.
  1. 1.
    Draw a polygon along the area you want to remove.

Redraw a Polygon

  1. 1.
    Click the polygon you want to edit, and click Redraw on the top menu bar.
  2. 2.
    Click the start and end point of the area to redraw clockwise and draw a polygon.
When editing polygon points, you must select the points clockwise.

Draw a Key Point

  • When drawing a key point, the name of the point to mark is displayed on the top menu bar. Mark the corresponding points in order.
    Example: human keypoint: nose → left eye → right eye → left ear → right ear ...

Draw a Polyline

Others

Select a Category

  • You can select an Image/Video category.

Select a Property

  • You can select property for an object class.

Create an Issue

  • You can create and manage issues.

Make Adjustments

  • You can adjust screen brightness, annotation transparency, line thickness and point size.
  • You can set Opacity to 100% and Brightness to 0% to get a similar screen to bitmap masking.
Any other questions? E-mail us at [email protected].