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Automated web screen shots with Perl

Posted in , , Fri, 21 Jul 2006 15:02:00 GMT

I've been looking for a program that will take full screen shots of web pages even when the web page is larger than the window size on my physical screen, requiring scrolling. This morning I found such a program in Petr Ċ mejkal's Win32::CaptureIE when it was mentioned by Displeaser on DevShed Forums in the "Screenshot of webpage" thread. It uses ImageMagick for image manipulation.

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Catalyst and image libraries

Posted in , Wed, 19 Jul 2006 04:05:00 GMT

I just migrated my Catalyst app to use GD instead of ImageMagick based on some reported compatibility issues.

  • Chris Laco reported Apache2/mod_perl2 would core dump with ImageMagick (on FreeBSD). He moved to FastCGI+ImageMagick first and is now using FastCGI+Imager. ImageMagick has been reported to work with Mason+Apache1.x+mod_perl1.3.
  • Andreas Marienborg reported on #catalyst IRC that Imager doesn't work with Catalyst+PAR and has moved to GD.
  • Someone on #rubyonrails IRC mentioned having problems with RMagick and was looking to migrate to ruby-gd

Wanting the best of all worlds, I moved to GD which also has a smaller memory footprint than ImageMagick. I ended up writing my own wrapper for Lincoln Stein's GD module using the Image::Magick API (drop-in replacement for a very limited set of functionality) though something like Image::Thumbnail, which provides a uniform interface to GD, ImageMagick and Imager, is probably better for general use.

Thanks to Chris and Andreas for their reporting issues. Hopefully I'll be all set with GD.

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