​

Global hotkeys

General annotation

• right mouse click on existing annotation - (click on an object) bring up classes pop-up menu to change assigned label class

• ctrl / cmd + z - undo action

• cmd + shift + z - redo action

• shift + d - set image status to "Done"

• ctrl + shift + d - set image status to "Done" and go to the next unlabelled image

• shift + r - set image status to "To review"

• l select the last created annotation (when not creating another object/polygon/mask)

Navigation / View

• + or scroll down on mouse or expand fingers on touchpad - zoom in

• - or scroll up on mouse or pinch on touchpad - zoom out

• press and hold spacebar + move mouse or ↓ / ↑ / → / ← - pan image in the chosen direction

• shift + 1 zoom to original size (100%)

• shift + 0 - zoom to fit the image to the screen

• shift + n - next image

• shift + b - previous image

• d - hide all annotations on an image as long as the key is pressed

• v - increase the opacity of all annotations to 100% as long as the key is pressed

• z - show label classes on top of annotations as long as the key is pressed

Tool selection

• p - Pan

• m - Move/Edit

• p - Polygon

• r - Bounding Box (as in Rectangle)

• o - Box to Instance

• x - DEXTR

• b - Brush

  • e - Eraser (when using brush)

• s - Semantic Segmentation Assistant (when available)

• j - Object Detection (when available)

• i - Instance Segmentation (when available)

Move/edit tool (M)

• shift + left mouse click - select multiple objects/points (including marquee tool to drag large selection(s))

• cmd / ctrl + a - select all labels

• backspace / delete / fn + delete - delete label(s)/point(s)

• cmd / ctrl + c - copy label(s)

• cmd / ctrl + v - paste label(s)

• cmd / ctrl + x - cut label(s)

• cmd / ctrl + d - duplicate label(s)

• ↓ / ↑ / → / ← - (when annotation(s) are selected) move annotation(s)

• ↓ / ↑ / → / ← - (when label vertex/point(s) selected) move point(s)

• alt + ↓ / ↑ / → / ← - move label/point a smaller distance

• shift + ↓ / ↑ / → / ← - move label/point a larger distance

• y - change label class to the next label class in the list

• shift + y - change label class to the previous label class in the list

• shift + o - send object(s) to the front

• shift + u - send object(s) to the back

• shift + c - converts polygon(s) to mask(s) or vice versa

Polygon tool (P)

• a - place first and additional vertexes of a polygon

• backspace / del - remove last placed vertex

• enter / double click left mouse / click on first vertex - complete polygon

• esc - cancel current polygon/exit tool to Move/Edit

Bounding box (R)

• a - place the first corner of a bounding box/place second corner of a bounding box (completing box)

• enter - complete bounding box

• esc - cancel current bounding box/exit tool to Move/Edit if none in progress

DEXTR (X)

• a / left mouse click - add an extreme point

• backspace / del - delete the last extreme point

• , / . - decrease/increase threshold

• enter - accept an suggestion of label

Brush (B) / Eraser (E)

• , / . - decrease/increase the size of the brush/eraser

• shift + o - enable / disable overpainting

• shift + f - fill closed path

• shift + i invert mask

• b - shift to brush (if using eraser)

• e - shift to brush (if using brush)

Semantic Segmentation Assistant (S)

• , / . - decrease / increase confidence

• enter - accept all suggested objects

Object Detection Assistant (J)

• , / . - decrease / increase confidence

• enter - accept all suggested objects

Instance Segmentation Assistant (I)

• , / . - decrease / increase confidence

• enter - accept all suggested instances