Extension:VipsScaler

This extension is a wrapper around VIPS a free image processing software. VIPS is a set of image manipulation tools specially designed for speed and low memory usage. This is useful for resizing large PNGs. The extension shells out to the vips binary. It can be configured to scale only certain files (for example: big PNGs) by configuring $wgVipsConditions.

VIPS installation
Install VIPS. It can be downloaded from http://www.vips.ecs.soton.ac.uk/.

After downloading VipsScaler, add it to your extensions/ directory, then add require_once("$IP/extensions/VipsScaler/VipsScaler.php"); If you'd like to add the Special:VipsTest test page, also add require_once("$IP/extensions/VipsScaler/VipsTest.php");

Debian / Ubuntu
$ apt-get install vips If you want to build from source have a look at upstream documentation: http://www.vips.ecs.soton.ac.uk/index.php?title=Build_on_Ubuntu

Mac OS X

 * homebrew
 * brew install vips
 * binary symlink is /usr/local/bin/vips

Configuration
$wgVipsCommand : path to the vips command (default: vips).

$wgVipsOptions : scaler conditions, to be documented.