Whenever the mouse moves over the pattern rectangle, a second rectangle with a dashed outline appears. You can resize the pattern if necessary by dragging on the rectangle’s borders. Every pixel within the rectangle makes up the pattern used for tracking. In the viewer, the tracker displays a solid-line red rectangle called the pattern rectangle. These controls are visible in the viewers whenever you select a tracker in the node tree. Tracker Onscreen ControlsĮach pattern in the Tracker has its own set of onscreen controls used to select the pixels in the image to be tracked. The same foreground-over-background merge capabilities are available in the Tracker node. Below, the Tracker tracks the image connected to the orange background input and applies the tracking data to the image connected to the foreground input. The Tracker can also work as a replacement for a Merge tool in match-moving setups. The tracking data is published and can be used via the Connect To contextual menu. The output of the Tracker does not need to connect to another node.
When used as an offshoot from the node tree, an image can be tracked and then that tracking data is published for use on another node somewhere else in the node tree. After the image is tracked, setting the Tracker’s Operation menu to Match Move will apply a stabilization to the connected image. When used inline, an image can be stabilized by connecting it to the orange background input. Tracker nodes can be applied inline with other nodes or as a branch from the clip you want to track. Connecting a mask to this input limits the tracking to certain areas.
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