What Pikl is an image librarry for JPEG, PNG and Bitmap. Pikl’s API is designed to process the image easily with method chain. Installing Windows $ sudo gem install pikl Linux Linux requires libjpeg and libpng. Install These libraries with yum or apt-get. $ sudo yum install libjpeg $ sudo yum install libjpeg-devel $ sudo yum install libpng $ sudo yum install libpng-devel And use gem command. $ su