Segment Anything Labelling Tool (SALT)

Uses the Segment-Anything Model By Meta AI and adds a barebones interface to label images and saves the masks in the COCO format.

Installation

1. Install Segment Anything on any machine with a GPU. (Need not be the labelling machine).
2. Download a model checkpoint here.
3. (Optional) Install coco-viewer to scroll through your annotations quickly.

Usage

Run ./setup.sh [DATA DIRECTORY] in the root directory to pre-process the images and start labeling.

There are a few keybindings that make the annotation process fast:

• Click on the object using left clicks and right click (to indicate outside object boundary) (left click means the pixel is inside the object, and right click means it's outside)
• n adds predicted mask into your annotations. (Add button)
• r rejects the predicted mask. (Reject button)
• a and d to cycle through images in your your set. (Next and Prev)
• l and k to increase and decrease the transparency of the other annotations.
• Ctrl + S to save progress to the COCO-style annotations file.

7. coco-viewer to view your annotations.
   • python cocoviewer.py -i <dataset> -a <dataset>/annotations.json

Demo