fxposter/carrierwave-processing — pull request #4 by justinsoong (2014-01-21 08:07:10+00:00)
Title: Add Support for blur

Blur switch '-blur radiusxsigma'
http://www.imagemagick.org/Usage/blur/#blur_args
http://www.imagemagick.org/script/command-line-options.php#blur