VIPS

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What is it?

nip2-7.36

VIPS is a free image processing system. Compared to similar libraries, VIPS is fast and does not need much memory, see the Speed and Memory Use page. As well as JPEG, TIFF, PNG and WebP images, it also supports scientific formats like FITS, OpenEXR, Matlab, Analyze, PFM, Radiance, OpenSlide and DICOM (via libMagick).

It comes in two main parts: libvips is the image-processing library and nip2 is the graphical user-interface. libvips has a simple GObject-based API and comes with interfaces for C, C++, the command-line and Python. Other bindings have been made, including Ruby and Go. libvips is used as an image processing engine by sharp (on node.js), carrierwave-vips, mediawiki, photoflow and others.

The official VIPS GUI, nip2, aims to be about half-way between Photoshop and Excel. It is very bad at retouching photographs, but very handy for the many other imaging tasks that programs like Photoshop are used for.

Both work on Linux/Unix (with convenient packages for most popular distributions, see links), Windows XP and later and MacOS 10.2 and later.

License

libvips is licensed under the LGPL and nip2 is licensed under the GPL, see http://www.gnu.org. This means you can use libvips in commercial or closed-source software, but that if you distribute a copy of libvips, you must offer a download of the libvips sources on your website somewhere, you need to tell your users that they are using something based in part on free software (perhaps a note in your help system), and if you directly modify the libvips sources in any way, you must release the source to your changes.

Download

Supported 
Download and install the current supported version for Windows, OS X or as source code. Most Unix systems have vips available through their package manager. Fink, Macports and Homebrew all have versions. See What's New in 7.42 for an introduction to this version.
Development 
Read about and download the sources for the current development version.

VIPS aims for a six-month development cycle. See the Development pages for notes on how to work on the code yourself.

Documentation

libvips API documentation 
It includes a detailed description of the whole API, tutorial sections on the command-line, C, C++ and Python interfaces, how to extend libvips and how to write your own binding.
The vips blog 
Has news about vips and posts about using the system.
https://github.com/jcupitt/libvips and https://github.com/jcupitt/nip2 
All of the sourcecode and the build systems.

If you needs docs on the old vips7 API, see the vips-7.24 docs area.

Here are some quick guides to introduce nip2, the VIPS GUI. These guides are part of the nip2 manual: click Help / Contents (or press F1) to view the guide while using the program.

Quick interface tour 
Runs quickly though some easy stuff to show how the interface works.
Infrared reflectogram mosaic tour 
Explains how to use nip2 to build reflectogram mosaics.
Nerd tour 
Goes into some detail about the insides of nip2 and how to program your own widgets.

Please report bugs, ask questions and give feature requests on the libvips issue tracker and the nip2 issue tracker.

There's a VIPS mailing list for announcements. Go to this page for subscription details and the list archive.

The Contact page has the names and addresses of the maintainers.

The Examples page summarises the example workspaces that come with nip2. Several of the HOWTO guides are worked examples.

Cite

Martinez, K. and Cupitt, J. (2005) VIPS ― a highly tuned image processing software architecture. In Proceedings of IEEE International Conference on Image Processing 2, pp. 574-577, Genova.

Cupitt, J. and Martinez, K. (1996) VIPS: An image processing system for large images, Proc. SPIE, vol. 2663, pp. 19--28.

Other stuff

Contact 
Maintainers and the mailing list.
Links 
Related sites, pages about VIPS, people who use VIPS.
What's New in 7.42 
We've just released 7.42, a fancy new version. This page explains what's new in headline form.
Hello World 
Minimal programs using VIPS, handy for testing.
HOWTO 
Various HOWTO guides, including building on windows.
History 
How VIPS came to be.
libvips 
Quick introduction to the library.
nip2 
Quick overview of the graphical user interface.
Benchmarks 
Results from the vips im_benchmark command.