This is the official fork of RMagick. The decision to create a fork originated here, where you can read more about why it happened.
Table of Contents
- Installing RMagick
- Things that can go wrong
- More samples
- Reporting Bugs
- Contact Information
RMagick is an interface between the Ruby programming language and the ImageMagick image processing library.
O/S Linux, *BSD, OS X, Windows 2000, XP, Vista, other *nix-like systems.
Ruby Version 1.8.5 or later. You can get Ruby from www.ruby-lang.org.
Ruby must be able to build C-Extensions (e.g. MRI, Rubinius, not JRuby)
ImageMagick Version 6.4.9 or later. You can get ImageMagick from www.imagemagick.org.
Installing via Bundler
Add to your `Gemfile`:
Installing via RubyGems
gem install rmagick
Require RMagick in your project as follows:
Things that can go wrong
The RMagick installation FAQ has answers to the most commonly reported problems, though may be out of date.
Can’t install RMagick. Can’t find libMagick or one of the dependent libraries. Check the mkmf.log file for more detailed information.
Typically this message means that one or more of the libraries that ImageMagick depends on hasn’t been installed. Examine the mkmf.log file in the ext/RMagick subdirectory of the installation directory for any error messages. These messages typically contain enough additional information for you to be able to diagnose the problem. Also see this FAQ.
Cannot open shared object file
If you get a message like this:
$DIR/RMagick.rb:11:in `require': libMagick.so.0: cannot open shared object file: No such file or directory - $DIR/RMagick2.so (LoadError)
you probably do not have the directory in which the ImageMagick library is installed in your load path. An easy way to fix this is to define the directory in the LD_LIBRARY_PATH environment variable. For example, suppose you installed the ImageMagick library libMagick.so in /usr/local/lib. (By default this is where it is installed.) Create the LD_LIBRARY_PATH variable like this:
On Linux, see
ld.so(8) for more information. On other operating
systems, see the documentation for the dynamic loading facility.
If you upgrade to a newer release of ImageMagick, make sure you’re using a release of RMagick that supports that release. It’s safe to install a new release of RMagick over an earlier release.
You can find more sample RMagick programs in the /example directory. These programs are not installed in the RMagick documentation tree.
Please report bugs in RMagick, its documentation, or its installation programs to me via the bug tracker on the RMagick issues page
However, I can’t help with Ruby installation and configuration or ImageMagick installation and configuration. Information about reporting problems and getting help for ImageMagick is available at the ImageMagick web site or the ImageMagick Forum.
Author: Tim Hunter, Omer Bar-or, Benjamin Thomas
Thanks to ImageMagick Studio LLC for ImageMagick and for hosting the RMagick documentation.
Copyright © 2002-2009 by Timothy P. Hunter Changes since Nov. 2009 copyright © by Benjamin Thomas and Omer Bar-or Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- Update ChangeLog
- Edit lib/rmagick/version.rb
- Are the tests passing? Run `rake` again just to be sure.
- `rake release`