Barrel 4 Point Tutorial
Before
After
Here's how,
(Use Arbor Image Magick)
Take image to IM and choose the FX tab
Paste this entire line of numbers including the decimals, hyphen and spaces into
the parameter box.
-0.2 0.0 0.0 1.3
then check the DISTORT Button
under the Fx Properties section choose DISTORT=BARREL
CHANNEL=DEFAULT
VIRTUAL PIXEL METHOD=BLACK
Now OUTPUT and collect your image.
You may also choose any of the other VIRTUAL PIXEL METHODS for an
amazing array of other effects.
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