dforesman / image_optimizer

This gem allows you to simply optimize images via jpegoptim or optipng.

ImageOptimizer

This gem allows you to simply optimize images via jpegoptim or OptiPNG.

Tested against ruby 1.8.7, 1.9.2, 1.9.3, ruby-head, jruby-18mode, jruby-19mode, jruby-head, rbx-18mode, rbx-19mode, and ree

[] (http://travis-ci.org/jtescher/image_optimizer) [] (https://gemnasium.com/jtescher/image_optimizer) [] (https://coveralls.io/r/jtescher/image_optimizer)

Installation

This gem uses the following utilities for optimizing images:

1. jpegoptim, which can be installed from freecode.com

2. OptiPNG, which can be installed from sourceforge.net

Or install the utilities via homebrew:

$ brew install optipng jpegoptim

Then add this line to your application's Gemfile:

gem 'image_optimizer'

And then execute:

$ bundle

Or install it yourself as:

$ gem install image_optimizer

Usage

Optimize PNG or GIF formats:

OptiPNG is a PNG optimizer that recompresses image files to a smaller size without losing any information and performs PNG integrity checks and corrections.

ImageOptimizer.new('path/to/file.png').optimize

Optimize JPEG formats:

jpegoptim provides lossless optimization for JPEG files based on optimizing the Huffman tables. all jpegs will be progressively optimized for a better web experience

ImageOptimizer.new('path/to/file.jpg').optimize

Lossy JPEG optimization

Pass an optional 'quality' parameter to target a specific JPG quality level (0-100), or pass -1 for lossless optimization. PNGs will ignore the quality setting

ImageOptimizer.new('path/to/file.jpg', 80).optimize

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request