2011

2 Select the Tracker Analyzer tool from the Tools tab and drag it to the
Schematic. You do not need to attach it directly to the dependency graph
as it is not going to be modifying the image but rather, you will be using
data associated with that tracker.
3 Attach the composition to the input of the tracker.
4 Add a second Tracker Analyzer.
5 Resize and reposition each Tracker, so that they track the scaling change.
(In this example, the Trackers are placed over the upper-right and
lower-left corners of the license plate.)
6 Adjust the settings for each Tracker.
7 Select the first analyzer from the File browser and click Analyze to start
the analysis.
8 Return to the first frame.
9 Select the second analyzer from the File browser and click Analyze to
start the analysis.
10 Drag a Reaction tool from the Tools tab and place it in the dependency
graph between the footage node and the Output node.
11 With the cursor over the Reaction node, right-click and select Add Source.
12 At the bottom of the Layer Editor, select Bilinear and click Create.
A new layer is created.
13 Attach the second composition (or object) as source 1.
14 Go back to the first frame.
15 Click the Reaction tab.
16 Right-click Scale and select Track Scale.
17 Select both Tracker Analyzers using Ctrl + click, and click Link.
774 | Chapter 32 Tracking and Stabilizing