RectLabel

An offline image annotation tool for object detection and segmentation.

To download RectLabel apps.

• RectLabel
• RectLabel Pro

Post the problem to our Github issues.

Have questions? Send an email to support@rectlabel.com.

Settings menus

• Projects
• Objects
• Attributes
• Hotkeys
• Label fast
• Export/Import settings file
• Locate settings file
• Open app folder

Projects

A project contains an objects table and an attributes table.

• To switch the project, check on the “Primary” check box.
• To import projects, use RectLabel menu -> Import settings file.

Objects

The objects table describes each object name and the object index.

• You can assign 0-9 number keys and A-Z alphabet keys to object names.
• You can drag & drop an object names file to the objects table.
• Right click on the objects table header, “Sort alphabetically” menu appears.

Attributes

The label “sneakers-converse-yellow” is a combination of the object name and attribute names.

• ’-‘ is used as a separator so that ‘-‘ in the object name and the attribute name is replaced with ‘_’.
• If any objects are not using attributes, ‘-‘ in the object name is not replaced with ‘_’.
• The prefix is used such as ‘-‘ + prefix + attribute name.
• Attribute types are “Single select”, “Multiple select”, and “Text input”.
• You can assign 0-9 number keys and A-Z alphabet keys to attribute names.
• Right click on the attributes table header, “Sort alphabetically” menu appears.

Hotkeys

Customize hotkeys to make your labeling work faster.

Label fast

Customize settings to make your labeling work faster.

Export/Import settings file

You can export the current settings file and import to another computer.

Locate settings file

You can change the location of the settings file. If you change the location to iCloud drive, you can share the settings file among multiple devices.

Open app folder

You can open an app folder and delete the cache files.