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Posted: 2006-08-27T08:47:46-07:00
by magick
ImageMagick determines the image type from its magic number (usually a few unique bytes in the first few thousand bytes of the image file), from its extention (e.g. image.gif), or from an explicit prefix (e.g. gif:/tmp/phpX16rjz). If it cannot determine the image type it throws an exception.

Posted: 2006-08-27T11:19:04-07:00
by magick
Check to ensure you can run the convert command from the command-line:
  • convert logo: logo.gif
If that works, make sure the permissions are set properly. Does the bulletin board software has read and execute permissions to the ImageMagick software.

Posted: 2006-08-27T14:25:29-07:00
by magick
Ok, your installtion did not include the JPEG and PNG delegate libraries. Type
  • identify -list format
to confirm. Install the JPEG and PNG development libraries and reconfigure, rebuild, and reinstall ImageMagick.

Posted: 2006-08-27T15:35:24-07:00
by magick
On Linux systems you can install the JPEG and PNG development RPMS. Not sure how that's done on a FreeBSD system.