Skip to content

Classes & Annotations

The classes panel provides quick access to all existing annotations, as well as the image navigator.

Classes Panel


Class Selector

The class selector is always available at the upper left corner of the canvas. Use it to choose which class to annotate, add a new class, or to clear the class selection.

If no class is selected, the annotator will be prompted after each annotation to enter a class, or add a new one if the task allows.

Class Selector

New Instance New Instance Icon

This icon is available below the annotation list for instance segmentation tasks only. Clicking this icon allows users to add a new instance of the selected class, rather than adding an annotation to an existing instance of that class.

Annotation List

The annotation list is located at the bottom of the classes panel, and changes slightly depending on the task type. Generally it displays a list of all annotations, or object masks, and options for each one. To select multiple annotations, hold Shift while clicking each one.

Show/Hide Classes Eye Icon

This icon appears next to each class name in the annotation list. Clicking this icon once will hide all annotations that belong to that class, and clicking it a second time will show them.

Hide Object

Delete Object Delete Icon

This icon appears in the annotation list next to each object that has been drawn on the canvas. Clicking it will delete the corresponding annotation. Clicking the delete icon next to a class name will remove all annotations of that class.

Delete Object