Magic Wand Tool for Image Annotation

This feature allows annotators to click in a region of an image for segmentation labeling, drag the mouse to dynamically change flood filling tolerance, then release the mouse button to get a new labeled area. Annotators can also easily zoom for fine-grained labeling detail and quickly scan around the zoomed-in image.

This tool is particularly useful for labeling broad, diffuse, complex-edged objects, such as clouds, cloud shadows, snow, etc. in Earth observation applications, or organic shapes in biomedical applications. For these use cases, this tool can significantly improve labeling speed and accuracy.

A big thanks to the Planet Labs team, who created and submitted this feature!