5.1.1

Chapter 22 Motion tracking 973
•
Choose Horizontal to apply the stabilize transformation to the X dimension.
•
Choose Vertical to apply the stabilize transformation to the Y dimension.
d Enable or disable the Adjust options, as follows:
•
Turn on Position to apply the analyzed position data to the clip. (The X and Y position
changes in the footage are smoothed or stabilized.) To stabilize the X and Y position of
the shot and leave scale or rotation changes intact, turn on Position and turn o Scale
and Rotation.
•
Turn on Scale to apply any analyzed scale data to the clip. (Scale changes in the footage
are smoothed or stabilized.) To stabilize or smooth changes in scale and leave position or
rotation changes intact, turn on Scale and turn o Position and Rotation. (The Scale option is
not related to the Zoom option in the Borders pop-up menu.)
•
Turn on Rotation to apply analyzed rotation data to the clip. (Changes in the rotation of the
footage are smoothed or stabilized.) To stabilize or smooth changes in rotation in the shot
and leave position or scale changes intact, turn on Rotation and turn o Position and Scale.
For the smoothest result, turn on all three Adjust options (Position, Scale, and Rotation).
Note: You can change the Method, Borders, Direction, and Adjust parameters before or after
the clip is analyzed.
3 Click the Analyze button in the HUD or Behaviors Inspector.
Note: The clip is stabilized according to dened parameters. Unlike Motion trackers, the default
Stabilize analysis does not create keyframes in the Keyframe Editor. However, the stabilized
object’s transformation can be converted to keyframes. For more information, see Advanced
strategies to improve tracking results on page 984. When correlation trackers are added to and
analyzed with the Stabilize behavior, keyframes are created.
For more information on correcting problems associated with stabilization, see Basic strategies to
improve stabilization on page 990.
Adjust the Stabilize behavior’s Track Region parameter
When stabilizing a clip, you can use the Track Region parameter to dene an area to be analyzed
(isolating the stabilization to a limited area of the analyzed source). During analysis, the area
outside the region is ignored. Use this option for faster processing of a clip.
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.
67% resize factor