Crops images based on entropy: leaving the most interesting part intact. Don't expect this to be a replacement for human cropping, it is an algorythm and not an extremely smart one at that :). Best results achieved in combination with scaling: the cropping is then only used to square the image, c...

Merges many PNG images into a single image and generates a CSS stylesheet

A simple and custom captcha for Rails3.

Generate an artistic QR codes.

356 Projects for Sinatra/Sequel

A library for zoomifying images

This is a perceptual image hash calculation and comparison tool. This can be used to match compressed or resized images to each other.

CLI for Dealwithify

Provides a method to retrieve the image most similar to the specified image from the array.

A tool for processing cave photos for DeSoto Caverns.

A gem that grab the signature from Despatch Master which is in Vector Array format and convert it into an image

Calculate the DHash of an image file

Lagrangian dHash in Ruby.

Toolkit for working with DICOM image sequences

command line utilities to manage catalogs of directory damn simple catalog based on tagging file name. The tag are between bracket. For example the filename 'photo [sea][2010][summer]', associate with the name photo the tag sea,2010,summer.

disp3D provide 3D GUI framework

DoctorNinja is built by the Responde Aí Team (www.respondeai.com.br/time) in an attempt to fill our needs to convert docx files into html that also converts Word Forumlas into MathML.

such gem

domino simulator

Get the dot data from the character