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The value of the algorithm is controlled by means of the Despill coarse function. If the keyed
background is green, after a certain threshold of the Despill coarse function is crossed, the
green component is entirely eliminated from the object in the RGB (red, green, blue) space,
which results in the transition of colours into the purple (magenta) area.
A view after the green component has been eliminated
Another function enables a more accurate adjustment of the above problem.
The use of the Despill fine function eliminates the keyed background colour from the object,
but this time on the basis of the chrominance components.
The Despill fine slider
After the application of Despill coarse, which is used for preliminary correction, more accurate
adjustments can be made, and so the Despill fine settings may not have any significant impact
on the algorithm if Despill coarse is set to high.
Impact of the background on the object – a view after a Despill correction
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