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<?xml version="1.0" encoding="ISO-8859-1"?>
<fpdoc-descriptions>
<package name="CoreLib">
<module name="fpg_extinterpolation">
<short>Extra interpolation filter declarations.</short>
<descr>
<p>
Some more interpolation filters for
<link id="fpg_base.TfpgCanvasBase.StretchDraw">TfpgCanvas.StretchDraw</link>:<br/>
Bessel, Gaussian and Sinc are infinite impulse response (IIR),
the others are finite impulse response (FIR). The implementation
of Bessel and Sinc are windowed with Blackman filter.</p>
<p>
This unit was ported from fcl-image which is part of FPC. A few
more filters have also been added.</p>
</descr>
</module>
</package>
</fpdoc-descriptions>
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