grayscale_paperclip_processor
Grayscale processor for Paperclip gem
Usage:
Gemfile:
gem "grayscale_paperclip_processor"
Model:
has_attached_file :data,
:processors => [:watermark],
:styles => {
:grayscale => {
:processors => [:grayscale],
:geometry => "361x226!"
}
:normal => "361x226#",
...