Legacy ImageMagick Discussions Archive

Hello,

I have a problem with the function distortImage.

In fact, I just copied / pasted the example below on the mikko's blog and I have this error :

Fatal error: Uncaught exception 'ImagickException' with message 'invalid argument for option PerspectiveProjection : 'Needs 8 coefficient values'' in ...

Code: Select all

<?php
/* Create new object */
$im = new Imagick();
 
/* Create new checkerboard pattern */
$im->newPseudoImage(100, 100, "pattern:checkerboard");
 
/* Set the image format to png */
$im->setImageFormat('png');
 
/* Fill background area with transparent */
$im->setImageVirtualPixelMethod(Imagick::VIRTUALPIXELMETHOD_TRANSPARENT);
 
/* Activate matte */
$im->setImageMatte(true);
 
/* Control points for the distortion */
$controlPoints = array( 10, 10, 
                        10, 5,
 
                        10, $im->getImageHeight() - 20,
                        10, $im->getImageHeight() - 5,
 
                        $im->getImageWidth() - 10, 10,
                        $im->getImageWidth() - 10, 20,
 
                        $im->getImageWidth() - 10, $im->getImageHeight() - 10,
                        $im->getImageWidth() - 10, $im->getImageHeight() - 30); 
 
/* Perform the distortion */  
$im->distortImage(Imagick::DISTORTION_PERSPECTIVE, $controlPoints, true);
 
/* Ouput the image */   
header("Content-Type: image/png");
echo $im;
?>

Thank you for your help.

Probably not the kind of helpful response you prefer, but I get the same error when I run the code you posted. I'm running Image Magick 6.5.1 Q16 and ( if I remember correctly ) php_imagick_dyn-Q16.dll.

Thank you for your reply.

Some details :

My configuration with which I have this problem is :

Windows XP
Imagick module version 2.2.1-dev (php_imagick_dyn-Q16.dll)
ImageMagick 6.5.1-6

When I use the same script on my linux server, it runs at half, there was no transparency (Image attached).

Hey guys,

This problem has occurred before, so check out the thread there so that we can keep all of the info in one place.

viewtopic.php?f=18&t=9955&p=59631#p59631

If your perspective is so exaggerated that you are seeing the horizon, then you need to set the mattecolor. see http://www.imagemagick.org/Usage/distorts/#horizon

Legacy ImageMagick Discussions Archive

Error distortImage with Mikko example

Error distortImage with Mikko example

Re: Error distortImage with Mikko example

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Re: Error distortImage with Mikko example

Re: Error distortImage with Mikko example