5

To use the Stabilize behavior’s Track Region parameter
1 In the Stabilize parameters (in the Behaviors Inspector), select the Track Region checkbox.
A transparent red overlay appears in the Canvas.
2 Do one of the following:
• Drag in the region to change its position.
• Drag a handle to resize the region. The corner handles simultaneously resize width and
height; the top and bottom center handles resize height; the left and right center
handles resize width.
• Press Option while dragging a handle to resize the region from its center.
• Drag the rotation handle in the center of the region to change the angle of the region.
Track Region rotation
handle
3 After defining the track region, click the Analyze button in the Behaviors Inspector.
Because analysis takes place in the defined track region, the clip is analyzed more quickly.
Unstabilize Workflow
This section provides a basic overview of using the Unstabilize tracking behavior to reapply
camera shake or movement into a finished clip.
The Unstabilize behavior’s sole function is to apply movement recorded by a Stabilize
behavior to a clip or object. This allows you to match the camera movement from a
background clip to foreground elements, or to unstabilize a stabilized clip.
Note: A project must include a Stabilize behavior with recorded motion data before you
can use the Unstabilize behavior.
To use the Unstabilize behavior
1 Select the object to unstabilize, then choose Motion Tracking > Unstabilize from the Add
Behavior pop-up menu in the toolbar.
The behavior is added. If a Stabilize behavior (that has completed an analysis) is present
in the project, the Stabilize data is applied to the Unstabilize behavior.
1315Chapter 22 Motion Tracking