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3 Enable Rotation, Scale or both, as needed.
4 In the Tracking Mode box, select Stabilize and click the Enter Tracker button.
The media is automatically loaded into the Stabilizer and the Stabilizer menu appears.
5 In the Stabilizer menu, enable Context to use the Action scene as the reference.
6 In the Stabilizer, position Tracker1 over the reference point that you want to track.
7 If you enable Rotation or Scale (or both), position Tracker 2 over a point that represents the rotation
or change in size of the pattern.
8 Click Analyze to generate the translation data.
NOTE You can fine-tune the tracking data if necessary. See
Tracking Difficult Shots and Correcting Errors
(page 735).
9 Once the analysis is complete, click Return.
When you exit the Stabilizer, the X and Y Shift values for the reference position are automatically
copied into the X and Y translation channels for the selected axis in Action.
TIP After stabilizing, you can set a reference frame that has no transformations by enabling the Adjust Offset
button (in the Axis tab) at the selected frame.
Removing Jitter While Keeping Overall Motion
Use the Jitter option to remove the jitter from a clip while retaining the overall motion. The Stabilizer
calculates the difference between an average applied to the channel by using the current Over value and
the original tracking data. Applying this curve leaves only the jitter values as keyframes. Copying these
curves can also be useful if you want to extract the jitter values to apply to another clip.
The Jitter option removes jitter in a clip on both the X and Y axes simultaneously, and averages the pan
over time so that it appears even. Jitter control offers more flexibility than the Remove Vertical Jitter and
Remove Horizontal Jitter buttons, which remove motion in one direction only. Use Remove Vertical Jitter
and Remove Horizontal Jitter in simple situations, or to produce a result quickly.
Removing jitter is a process of trial and error. Try different Over values until you find one that yields good
results. As a general rule, start with a large Over value over n frames to remove slow jitter, and start with a
small Over value to remove fast jitter.
To remove jitter and keep overall motion:
1 Position Tracker1 over a pattern you want to stabilize.
2 To automatically remove the border at the edges of the clip, select Crop Edges from the Scale and Shift
Option box.
(a) Scale and Shift Option box
3 Go to the reference frame, and click Analyze to generate the Shift data.
4 Click Animation to display the Channel Editor. Select the tracker number and expand the Shift folder.
The Shift curves turn white when the Shift channel is selected.
5 Select the Keyframe tab from the Animation Controls tabs.
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