Help Overview

RectLabel version 2023.05.31

- Improved so that you can drag & drop the COCO RLE JSON file of the SA-1B dataset to the labels table to import mask annotations.

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If RectLabel is not launched correctly, delete cache files.

  1. Backup the settings file "~/Library/Containers/RectLabel/Data/settings_labels.json".
  2. Delete cache files "~/Library/Containers/RectLabel".
  3. Clean up the trash box and launch RectLabel.

If you encounter in-app purchasing errors, reboot your Mac.

  1. Delete RectLabel via the Launchpad app.
  2. Log out of the Mac App Store.
  3. Reboot your Mac.
  4. Log back in to the Mac App Store and install RectLabel.

If you installed RectLabel on your new computer, authorize or deauthorize your computer for iTunes Store purchases.

Key features

Draw polygons, cubic bezier curves, line segments, and points

Draw oriented bounding boxes in aerial images

Draw keypoints with a skeleton

Draw pixels with brushes and superpixels

Read/write in PASCAL VOC xml and YOLO text formats

Export to CreateML object detection and image classification formats

Export to COCO, Labelme, YOLO, DOTA, and CSV formats

Export indexed color mask image and grayscale mask images

Settings for objects, attributes, hotkeys, and labeling fast

Customize the label dialog to combine with attributes

1-click buttons speed up selecting the object name

Auto-suggest works for more than 5000 object names

Search object, attribute, and image names in a gallery view

Automatic labeling using Core ML models

Automatic text recognition using OCR

Video to image frames, augment images, etc.

Support English, Chinese, Korean, and 11 other languages.

Feature requests

  • iPadOS version
  • Windows version
  • Ubuntu version

Tutorials cited RectLabel

Papers cited RectLabel