User Manual

Table Of Contents
NOTE: The stabilizer uses the Track spline (created by the tracker) to produce the
Stable Track spline. Both of these splines’ keyframes contain 4 x 4 matrices, and the
keyframes are editable in the Spline Editor.
Clipping Mode
Determines what happens to the parts of the background image that get moved off frame by
the stabilization:
Domain: The off frame parts are kept.
Frame: The off frames parts are thrown away.
Frame Mode
This controls how transparent edges are handled. The available options include:
Full: Do nothing. Leaves the transparent edges as is.
Crop: Crops away the transparent edges. When this option is selected, the size of
Planar Tracker’s output image is smaller than the input image. No image resamplings
occur. In Crop mode, use the Auto Crop button or manually adjust the crop window by
changing the X Offset, Y Offset, and Scale sliders.
Auto Crop Button: When this button is clicked, the Planar Tracker will examine all the
frames and pick the largest possible crop window that removes all the transparent
edges. The computed crop window will always be centered in frame and pixel
aligned. When clicked, Auto Crop updates the X/Y Offset and Scale sliders.
Zoom: Scales the image bigger until the transparent edges are off frame. Choosing this
option causes an image resampling to occur. The downside of this approach is that it
reduces the quality (slightly softens) of the output image. In Zoom mode, use the Auto
Zoom button or manually adjust the zoom window by changing the X Offset, Y Offset,
and Scale sliders.
Auto Zoom: When this button is clicked, the Planar Tracker will examine all the
frames and pick the smallest possible zoom factor that removes all the transparent
edges. The computed zoom window will always be centered in frame. When clicked,
Auto Zoom updates the X/Y Offset and Scale sliders.
Right-Click Here for Stable Track Spline
Right-clicking over this label provides access to a spline whose keyframes contain 4 x 4
matrices which in turn represent the stabilization transforms. This is mostly here for
completeness and for advanced users.
Chapter – 107 Tracker Nodes 2414