CarrierWave ImageOptimizer
This gem allows you to simply optimize CarrierWave images via jpegoptim or optipng using the image_optimizer gem.
Tested against 1.9.3, 2.0.0, 2.1.0, ruby-head, jruby-19mode, jruby-head, rbx-2.1.1, rbx-2.2.0, and rbx-2.2.1
Installation
This gem uses the following utilities for optimizing images:
jpegoptim, which can be installed from freecode.com
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 'carrierwave-imageoptimizer'
And then execute:
$ bundle
Or install it yourself as:
$ gem install carrierwave-imageoptimizer
Usage
To add image optimization to your CarrierWave uploader, first include the module:
class MyUploader < CarrierWave::Uploader::Base
include CarrierWave::ImageOptimizer
...
end
Then apply to all versions via:
class MyUploader < CarrierWave::Uploader::Base
...
process :optimize
end
Or to a single image version via:
class MyUploader < CarrierWave::Uploader::Base
...
version :thumbnail do
process :optimize
end
end
Lossy JPEG optimization
Pass an optional quality
parameter to target a specific lossy JPG quality level (0-100), default is lossless
optimization. PNGs will ignore the quality setting.
class MyUploader < CarrierWave::Uploader::Base
...
version :thumbnail do
process :optimize, quality: 50
end
end
Quiet Mode
Pass an optional quiet
parameter to compress images without logging progress.
class MyUploader < CarrierWave::Uploader::Base
...
version :thumbnail do
process :optimize, quiet: true
end
end
Contributing
- Fork it
- Create your feature branch (
git checkout -b my-new-feature
) - Commit your changes (
git commit -am 'Add some feature'
) - Push to the branch (
git push origin my-new-feature
) - Create new Pull Request