Image annotation is the basic mechanism by which you will be able to transfer your business expertise to a system capable of understanding your visual universe and acting accordingly.
Regardless of the image, you can edit its annotation directly from the corresponding Image page. The platform doesn't allow partial annotation, which means that when you start annotating an image, you will need to finish its annotation and to provide all the appropriate information.
To focus on images that have not been annotated yet, you need to go to the Not annotated yet section.
If several users wish to work at the same time, it is preferable to use the Multi-User mode.