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The easiest & fastest way to annotate images for vision AI. | Created by @wkentaro_ | 16K GitHub stars

Joined November 2023
Turn it on in File › Connect AI Agent… and click Add to Claude Desktop. ChatGPT and Claude Code take one click too.
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Your AI agent can now annotate in Labelme. It looks at the image you open, reads existing shapes, adds new or deletes wrong ones. You approve each change.
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Fit to Selection zooms to each shape you select. Turn it on with Ctrl+Shift+F and step through the Shape List with the arrow keys.
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Labelme v7.9 is built for reviewing annotations. Lock each shape you have checked with Ctrl+Shift+L. Labelme won't move, reshape, relabel or delete it until you unlock it. The lock is saved in the JSON file.
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New icon dropped. Hope you (will) like it
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You can now download and manage AI models right in Labelme’s Settings. Keep annotating while models download in the background. Included in Labelme 7.6.
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Launch Labelme with nothing open and it now shows where to start: Open Image, Open Directory, or drop files onto the canvas
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New in Labelme v7.5: - Merge masks that share a label. One Undo brings them back - An empty window shows where to start - Huge images open after a confirmation Plus fixes for Undo, Label List reordering, and zoom
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Use one color for every shape, or assign colors automatically by label
AI polygons can trace every bump in a boundary. Sometimes you want a smoother outline Labelme v7.2: - Adds control over AI polygon smoothness - Groups disconnected parts as one object - Puts shape colors in Settings Plus fixes for Undo and cursor-centered zoom.
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Three polygons, One plant Group ID keeps disconnected parts together
AI polygons can trace every bump in a boundary. Sometimes you want a smoother outline Labelme v7.2: - Adds control over AI polygon smoothness - Groups disconnected parts as one object - Puts shape colors in Settings Plus fixes for Undo and cursor-centered zoom.
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