Based on the idea of a simple server protocol to collaborate on a shared canvas named [Pixelflut](https://cccgoe.de/wiki/Pixelflut) this gem implements a fast Ruby client version.

This simple program compares two 'png' images, says whether they are different or not and outputs a difference file. Please see '/lib/png_comparison.rb' file or run 'rdoc' for this gem for more details.

Encode/decode arbitrary data within the PNG file format

Ruby Gem to generate PNG files with QR codes in them

Stitches an array of PNG blogs into one

Poly is a Ruby CMS with smart asset compiling and much, much more.

Polymer simplifies the creation of sprite images for web applications, while also generating nifty Sass mixins. CSS files are available for non-Sass users.

Html based, ie client side, printing for orders. Different styles are invoice, packing slip and receipt (for receipt printer in shop). Easy to configure and adapt

This is a very simple framework to create small frontends in a webserver

This Gem is a wrapper around an useful open-source library for creating QR Codes, a two-dimensional bar code format popular in Japan created by the Denso-Wave Corporation in 1994.

Generates on-demand 'ribbony' links that protrude to the left or right of active links

A Ruby library to generate gradient.

Extract metadata from iOS packages such as the app name, the app icons or the binary file. This is a diverging fork of github.com/schlu/Ipa-Reader.

OG resource proc library!

This metagem pulls in reterm and all optional dependencies for full functionality

Create RingCentral avatars using Gmail-style avatars

Provides the 'Drawing' class which is initialized with a filepath and a width. The image will be processed and put to the terminal as a collection of ANSI BG colored squares.

Generates random 5x5 avatars.

A Ruby game engine using OpenGL and GLFW

Russian Post tracking toolset, consisting tracking form bot (since Russian Post is too retarded for normal API) and captcha solver/recognizer.