Read, manipulate, and write images with an emphasis on speed and a low memory profile.
Read and Write JPEG and PNG images.
Scale images using bilinear or nearest-neighbor interpolation.
Crop images and image regions.
Scale images to fit into a box while preserving aspect ratio.
# Read a JPEG and write it as a scaled PNG. Axon.jpeg_file("image.jpg") do |image| image.fit(100, 100) image.png_file("image.png") end
The JRuby extension uses the Java Image I/O API.
The MRI/Rubinius extension uses:
IJG JPEG Library Version 6b or later.
pnglib version 1.2.x or later.
Installing libjpeg headers (OSX):
$ brew install libjpeg # requires homebrew (http://mxcl.github.com/homebrew/)
Installing libjpeg and libpng headers (Debian/Ubuntu):
$ sudo apt-get install libjpeg-dev libpng-dev
$ gem install axon
(The MIT License)
Copyright © 2012
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.