Automatic resizing, bordering and more of images.

Generates meme images using imagemagick

Jekyll filter to resize images.

A Ruby client for Image Proxy Server

Gem for storing and manipulating raw, uncompressed bitmap images

Camaleon CMS Plugin to display images in popup.

Tells if two images match each other.

Uses command-line ImageMagick tools to resize, rotate, and mogrify images.

A configurable Rails view helper for viewing Facebook profile images in your Rails application. Inspired by the gravatar_image_for gem.

A lightweight module designed to extract the width/height dimensions of various image types. Also supports SWFs. No supports SWF version too.

Similatron reports similarities between images, PDFs, or plain text files.It's particularly useful for tests for image generating functionalities

Provides secondary authentication by asking the user to select their chosen images

Provide a little helper command to minify images

Ruby Image Cropping and Caching Library

Determine the core of an image file, stripping any borders

Image server proxy that can resize images on the fly. Built in ruby as a Rack application.

Loads all image urls in your Rails project into a global JavaScript constant.

Super-quick image resizing using the ImageMagick command line tools

This gem is a powerful and easy to use web development tool that helps developing modern web sites by generating static html pages. It uses CoffeScript, Sass, Haml, Bootstrap, HeadJs, Bower, Grunt, Google Anlaytics and minimizes coffee-, javascript-, sass-, css-, png- and image-files.

Image Parsing Gem for PPM, BMP(todo) and PTF files.