PHP ImageMagick Plane2Cylinder Perspective

user_1464544 0
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I am trying to change the perspective of the Plane2Cylinder distortion in ImageMagick via PHP.

To help explain what I'm looking for, I've created this graphic:

Sample of perspective

You can see that the lower part of the red block has a greater radius than the top part, as if you were viewing this from above center.

I have tried the optional center_x/y fields:

$label->distortImage(\Imagick::DISTORTION_PLANE2CYLINDER, [28,0,100], true);

With various settings between 0 and 1000 on each x and y, with zero results.

Anyone have any insights or hints? I've search thoroughly, but can't find anything relevent.

imagemagick php
2 Answers

I haven't fount solution with the DISTORTION_PLANE2CYLINDER but just as an idea that a hardcore perspective may reduce the strength of difference and maybe become also a point for further distortions for eg. Circular and Radial Distortion Methods (Arc).

enter image description here

plus

convert img.png \
-matte \
-virtual-pixel transparent \
-distort Perspective '200,0,0,0 100,700,100,700 700,700,700,700 600,0,800,0 ' \
img1.png

enter image description here

May give you desired radius on top and bottom.

user_11744050

So, after all this work trying to figure out how to do this using masks, filters, etc... the solution was actually dead simple.

I ended up just placing the main image over top of a taller transparent image (at the correct distance down from the top to create the perspective), then applying the plane2cylindar to that whole image.

So crazy I didn't see that to start. Thanks for the thoughts and help though.

user_14645440
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