You can try out the environment used in this tutorial for practice.
Speed up your use of the tool and watch out for common mistakes.
Label and interpolate keypoint skeletons and custom polygons.
Interpolate annotations in video
Annotate, Review, Complete, how do statuses work?
Tasks are batches of images that annotators or users can work on independently.
How to and why leave comments on images.
Use the Auto-Annotate tool to generate accurate polygon or pixel-wise annotation masks.
Learn the basics of image annotation on V7 Darwin.