Optimise/compress images uploaded with refile

Question

Is there a way to optimise images uploaded with refile? I use a CDN so the files are mostly just created once, but i would like them to be optimised to save bandwidth.

I use Mini Magick for image manipulation, but can this also be used to reduce file size / Optimise?

Answer 1

The underlying tools that handle image manipulation are from MiniMagick. Image manipulation functionality has been extracted out of Refile into a separate gem, refile-mini_magick. You should be able to write your own processor as described in the readme.

Maybe something like this:

def quality(percentage)
  manipulate! do |img|
    unless img.quality == percentage
      img.write(current_path) do
        self.quality = percentage
      end
    end

    img = yield(img) if block_given?
    img
  end
end