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 comma and
spaces
into the
parameter box.
NOTE, for this style of image the fourth parameter number should be
exactly 1/2 of the height
of your image. For example, if your image is 450 pixels in height then you
would set the parameters to this 0,0 0 225
0,0 0 120
Then check the DISTORT button
Under the Fx Properties section choose
DISTORT=SHEPARDS
VIRTUAL PIXEL METHOD=TILE
No other settings are needed
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