What's new in LabelMe v6

LabelMe v6 is out. (Download or upgrade from here).

This release adds large image support (satellite/GeoTIFF) and changes the defaults for auto-save and image data embedding.

Large image and TIFF support

v6 can open very large images — including multispectral and float32 GeoTIFFs used in satellite and aerial imagery. The image below is a 26,456 x 22,892 pixel, 136 MB TIFF. v5 choked on files like this or refused to open them entirely.

LabelMe v6 annotating a large aerial TIFF image at 3% zoom with field, building, and bus annotations

Aerial image from OpenAerialMap.

Auto-save is on by default

Forgetting to save was one of the most common ways people lost work. v6 saves as you go.

To turn it off:

Uncheck File > Save Automatically in the menu
Or set auto_save: false in your config file

JSON files are smaller by default

v5 embedded image data inside every JSON file, making them large and diffs unreadable. v6 stores a file path reference instead.

If you need the old behavior (e.g. for sharing annotations without the images alongside):

Enable File > Save With Image Data in the menu
Or set with_image_data: true in your config file

Existing v5 files still open fine.

Other improvements

You can now reset your window layout from the menu if things get messy
Vertices are prioritized over shape bodies when hovering, so grabbing corners is easier
Point shapes can now be selected by clicking on them directly

Fixes

Crash on arrow keys when no shape is selected
Crash when previously selected shapes are missing
Crash on macOS with Japanese and other Unicode filenames
Crash on unknown keys in config file (now warns and continues)
Crash on malformed JSON in file dialog preview
Crosshair guide lines extending beyond image bounds
Window not restoring position when the saved screen is no longer available

Get v6

Available for Windows, macOS, and Linux from the downloads page. See the installation docs if you need help.

If something breaks, open a GitHub issue or ask on Discord.