Create a quadtree by decomposing images by color using CIELAB.

Uses ImageMagick to analyze images to further determine ratio of basic color composition in them.

Create colorschemes from known values

comic market catalog rom data csv and circle cut parser

A set of utility classes to extract meta data from different file types

Sass/Compass extension to convert css3 gradient to base64

Drop in rmagick sprite engine for compass

SVG images are a great way to display vector images online; however some older web browsers do not support this format. The compass-svg-polyfill gem generates fallback PNG images for these browsers.

Generate an image containing your GitHub contribution calendar.

A dangerous Ruby blog engine, with a photographic memory.

Credo detector

Manage your model images with RMagick and CarrierWave

crop the captured profile image of 'Doubutsu-No-Mori Pocket Camp' and divide it to 'face', 'name' and 'id' images

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, cutting off the least interesting part. The trimming simply chops off te edge that is least interesting, and continues doing so, untill it reached the requested size.

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.