Extract the dominant colors from an image.

Extract tables from PDF as a structured info. Uses ghostscript to print pdf to image, then recognizes table separators optically. No OpenCV or other heavy dependencies

Rspec-page-regression provides a mechanism for headless regression testing of web page renders in RSpec. It takes into account HTML, CSS, and JavaScript, by virtue of using PhantomJS (via the Poltergeist gem) to render snapshots. It provides an RSpec matcher that compares the test snapshot to an expected image, and facilitates management of the images.

Pixel sort PNG files with ease!

https://github.com/0dayinc/pwn/README.md

Library to deserialize Unity assetbundles and assets.

Ruby bindings for C library quirc that extracts and decode QR images

A Railtie that provides an asset management system for css, javascript, and sprites in your Rails applications and engines. ActiveAssets includes two libraries, ActiveExpansions and ActiveSprites. ActiveSprites generates sprites defined by a dsl similar to a route definition. Similarly, ActiveExpansions' dsl creates ActionView::Helpers::AssetTagHelper javascript and stylesheet expansions, and adds additional features

Full-page screenshots for Chrome in Selenium WebDriver

Compare screenshots in your tests!

Gnawrnip is a TurnipFormatter Add-on that provides put a screen shot to report use Capybara

A simple Ruby Wrapper for the indico set of APIs.

Uses KMeans clustering and the L*A*B* colorspace to extract "approximate human vision" dominant colors from an image. Optionally, use Euclidean Distance to map those dominant colors into preferred "color bins" for a search index facet-by-color solution.

lineup takes to screenshots of your app and compares them to references in order to find design flaws in your new code.

A Ruby port of the MonsterID PHP script, using ChunkyPNG. http://www.splitbrain.org/projects/monsterid

OpenCL evaluator for tensor_stream

A Ruby gem to asciify png images.

Voxel editor similar to creative mode from minecraft

Caleidenticon is a customizable generator for caleidoscope-like identicons.

CarrierWave Audio Waveform