Keyboard Shortcuts and Mouse Actions for Image Labeler

Note

On Macintosh platforms, use the Command (⌘) key instead of Ctrl.

Label Definitions

TaskAction
In the ROI Label Definition pane, navigate through ROI labels and their groups Up arrow or down arrow
In the Scene Label Definition pane, navigate through scene labels and their groups Hold Alt and press the up arrow or down arrow
Reorder labels within a group or move labels between groupsClick and drag labels
Reorder groupsClick and drag groups

Image Browsing and Selection

Browse and select images from the image browser, which is located in the bottom pane of the app.

TaskAction
Browse through images one at a timeLeft arrow and right arrow
Browse to the next set of images that is viewable in the image browser
  • PC: Page Up and Page Down

  • Mac: Hold Fn and press the up and down arrows

Go to the first image
  • PC: Home

  • Mac: Hold Fn and press the left arrow

Go to the last image
  • PC: End

  • Mac: Hold Fn and press the right arrow

Select all images from the current image to the first image
  • PC: Shift+Home

  • Mac: Hold Fn+Shift and press the left arrow

Select all images from the current image to the last image
  • PC: Shift+End

  • Mac: Hold Fn+Shift and press the right arrow

Select all images from the current image to a specific imageHold Shift and click the final image in the range
Select a specific set of imagesHold Ctrl and click the images you want to select

Labeling Window

Perform labeling actions, such as adding, moving, and deleting regions of interest (ROIs).

TaskAction
Undo labeling actionCtrl+Z
Redo labeling actionCtrl+Y
Select all rectangle and line ROIsCtrl+A
Select specific rectangle and line ROIsHold Ctrl and click the ROIs you want to select
Cut selected rectangle and line ROIsCtrl+X
Copy selected rectangle and line ROIs to clipboardCtrl+C

Paste copied rectangle and line ROIs

  • If a sublabel was copied, both the sublabel and its parent label are pasted.

  • If a parent label was copied, only the parent label is pasted, not its sublabels.

For more details, see Use Sublabels and Attributes to Label Ground Truth Data.

Ctrl+V
Delete selected rectangle and line ROIsDelete
Copy all pixel ROIsCtrl+shift+C
Paste copied pixel ROIsCtrl+shift+V

Fill all or all remaining pixels

Shift+click

Polygon Drawing

Draw polygons to label pixels on a frame.

TaskAction
Commit a polygon to the frame, excluding the currently active line segment

Press Enter or right-click while drawing the polygon

The polygon closes up by forming a line between the previously committed point and the first point in the polygon.

Commit a polygon to the frame, including the currently active line segment

Double-click while drawing polygon

The polygon closes up by forming a line between the point where you double-clicked and the first point in the polygon.

Remove the previously created line segment from a polygonBackspace
Cancel drawing and delete the entire polygonEscape

Zooming

TaskAction
Zoom in or out of frame

Move the scroll wheel up (zoom in) or down (zoom out)

The scroll wheel works in Zoom In, Zoom Out, and Label mode but not Pan mode.

Zoom in on specific section of frameFrom the app toolstrip, under Modes, select Zoom In. Then, draw a box around the section of the frame you want to zoom in on.

App Sessions

TaskAction
Save current sessionCtrl+S

See Also

Related Topics