CarrierWave OptimizeImage

This gem allows you to simply optimize CarrierWave images via jpegoptim or optipng using the image_optimizer gem.

Installation

Add this line to your application's Gemfile:

This gem uses the following utilities for optimizing images:

• Install for pngquant
• Install for jpegoptim

Or install the utilities via homebrew:

$ brew install pngquant jpegoptim

Add this line to your application's Gemfile:

gem "carrierwave-optimize_image"

And then execute:

$ bundle

Or install it yourself as:

$ gem install carrierwave-optimize_image

Usage

To add image optimization to your CarrierWave uploader, first include the module:

  class ImageUploader < CarrierWave::Uploader::Base
    include CarrierWave::OptimizeImage
    ...
  end

Then apply to all versions via:

  class ImageUploader < CarrierWave::Uploader::Base
    include CarrierWave::OptimizeImage
    ...
    process :optimize
  end

Or to a single image version via:

  class ImageUploader < CarrierWave::Uploader::Base
    ...
    version :thumbnail do
      process :optimize
    end
  end

Pass an optional quality parameter to target a specific lossy JPG and PNG quality level (0-100)

  class ImageUploader < CarrierWave::Uploader::Base
    version :thumbnail do
      process optimize: [{ quality: 60 }]
    end
  end

Quiet Mode

Pass an optional quiet parameter to compress images without logging progress.

  class ImageUploader < CarrierWave::Uploader::Base
    ...
    version :thumbnail do
      process optimize: [{ quiet: true }]
    end
  end

Contributing

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