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Release status: beta
|Description||Allows to scale PNG and JPEG images using VIPS|
|Author(s)||Bryan Tong Minh (Bryantalk)|
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The VipsScaler 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, and it improves the appearance of shrunken JPEGs.
The extension shells out to the vips binary. It can be configured to scale only certain files (for example: big PNGs) by configuring $wgVipsConditions.
VIPS installation[edit | edit source]
Install VIPS. It can be downloaded from http://www.vips.ecs.soton.ac.uk/.
After downloading VipsScaler, add it to your extensions/ directory, then add require_once("$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[edit | edit source]
$ apt-get install libvips-tools
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
(Wikimedia has packaged and uses a more recent version for Ubuntu 12.04 at apt.wikimedia.org)
Mac OS X[edit | edit source]
- brew install homebrew/science/vips
- binary symlink is /usr/local/bin/vips
Configuration[edit | edit source]
$wgVipsCommand : path to the vips command (default: vips).
$wgVipsOptions : scaler conditions, to be documented.
|This extension is being used on one or more Wikimedia projects. This probably means that the extension is stable and works well enough to be used by such high-traffic websites. Look for this extension's name in Wikimedia's CommonSettings.php and InitialiseSettings.php configuration files to see where it's installed. A full list of the extensions installed on a particular wiki can be seen on the wiki's Special:Version page.|