Shortcuts
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🎯 Mouse Operations
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• Left-click: Select annotation / Create annotation (in draw mode) / Add polygon point
• Left-drag center: Move annotation position
• Left-drag corner (HBB): Resize rectangle box
• Left-drag corner (OBB): Scale oriented box (resize width/height)
• Left-drag vertex (Polygon): Move polygon vertex
• Right-click: Select annotation / Show context info / Select polygon
• Right-drag corner (OBB): Rotate oriented box around center
• Scroll: Zoom in/out at mouse position
• Ctrl+Scroll: Fine zoom mode
• Double-click: After double-clicking, the target’s category, color, and other information will appear in the toolbar. At this point, you only need to edit the content you want. If you change the category, the category of this target will be changed. If you change the color, the color of that entire category will be updated.
⌨️ Basic Operations
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• Return/Enter: Log current image path to file
• Scroll: Zoom in/out at mouse position
• Ctrl+Scroll: Fine zoom mode
• Delete: Delete selected annotation box, point, or polygon
• Q: Toggle draw mode (enable/disable annotation creation)
• V: Toggle focus mode, only show the current target, hide other targets
• P: Get sub-image
• X: Toggle image stretch/restore
• Ctrl+Z: Undo last operation (in draw mode)
• Ctrl+C: Copy selected annotation (remembers shape, class, and other properties)
• Ctrl+V: Paste annotation at mouse position (only works when not in draw mode)
• Ctrl+S: Save current image annotations
• Ctrl+R: Refresh all annotations for current image
🔄 Navigation
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• ←: Show previous image
• →: Show next image
• ↑: Zoom in
• ↓: Zoom out
🎮 Canvas Movement
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• W: Move canvas up
• A: Move canvas left
• S: Move canvas down
• D: Move canvas right
📐 OBB/HBB Operations (Keyboard)
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• R: Increase selected OBB width / HBB horizontal direction
• F: Decrease selected OBB width / HBB horizontal direction
• T: Increase selected OBB height / HBB vertical direction
• G: Decrease selected OBB height / HBB vertical direction
• B: Toggle step size (1/5/10)
• C: Cycle overlapping targets at mouse position
• Note: Mouse operations are recommended for better control
🔷 Polygon Operations
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• Left-click: Add point to polygon (in draw mode)
• Double-click: Finish current polygon
• Right-click: Select polygon
• Delete: Delete selected polygon
• Left-drag vertex: Move polygon vertex
• Note: Polygons require at least 3 points to complete
⚡ Quick Settings
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• 1-5: Quick set annotation class
• Ctrl+1-5: Quick set annotation color
👁️ View Control
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• Ctrl+0: Reset zoom to 100%
• Ctrl+F: Fit to window size
• Ctrl+H: Show/Hide annotations