A cheaper statistics library.

super fast qrcode generator

Wrapper of chunkio

Support to search subimages for ChunkyPNG - fast with ruby extension

Custom ICU rulesets for collation in ruby - requires libicu

interface to the rdkafka C library

Native Ruby extension for running clamav scans

Ruby bindings for clang C API

Collect statistics about Class and Modules.

A Ruby wrapper for the SKIP2 REST APIs

C binding for cmetric library.

CNifti is a wrapper for the standard C NIfTI 1 library found at http://afni.nimh.nih.gov/pub/dist/src/nifti/

A ruby library that wraps libcogito

Extract dominant colors from images using native extension implemented in Rust.

Currently contains four options (ciede 76, cmclc, ciede94, and ciede2000) (all here: https://en.wikipedia.org/wiki/Color_difference), all weighted so that the distance between rgb 0,0,0 and rgb 255,255,255 will be 1.000 (accurate to 4 decimal places). Will add more. All are my own implementations (although ciede2000 is based on several dozen implementations found during research), and they may be wrong because of it. If you see any problems, let me know. Thanks go out to Josh Clayton (https://robots.thoughtbot.com/get-your-c-on), for helping me to understand the structure I was attempting to acheive.

Ruby bindings for Google's Compact Encoding Detection C++ library

Compix for oilypng

This is a Captcha gem for Rails Applications. It drawing captcha image with C code so it no dependencies.

Provides a class (CongruenceSolver) for finding the modular zeros of a polynomial (given the coefficients and modulus) and a binary (csolve) to to solve your congruences at the command line.

A string hash function that returns the same value each time it's called.