This topic describes how to use shortcut keys when you label images.

Function Shortcut key
Use the rectangle selection tool R
Use the polygon selection tool P
Switch a label 1, 2, 3, 4, 5, 6, 7, 8, 9 (only for the first 9 labels)
Skip the current topic S
Submit the current topic Enter
Return to the previous topic Left
Go to the next topic Right
Note You can move the pointer over a button to check the shortcut key.