14Transforms and Tracking
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Transforms are used to change the position, shape, size, and orientation of images and can be animated over time, as in the case of motion tracking. An understanding of the effects of pivot points and filter choices will protect you from degraded or unexpected results. The discussion of pivot points leads to some helpful techniques for the sometimes-onerous task of lining one image up onto another. And as long as we are pushing images around, a discussion of mesh warps and spline warps – as well as morphs – is in order.
Tracking is a key technique in visual effects and is at the ...
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