similie is an image fingerprinting & comparison utility

This bio-gem facilitates the creation of pretty, publication quality SVG images from feature data.

Use GraphicsMagick to load images in a Prawn docuemnt

Rack::Embed embeds small images via the data-url (base64) if the browser supports it.

This gem makes it simple to embed images within your code with a nice Ruby DSL.

Generates transparent PNG "bumpspark"-style sparklines. Use from Ruby directly or as a Rails helper generating an image tag w/ built-in data, as conceived by whytheluckystiff.

shibainus - generate your own 24×24 pixel shiba inu doge images (off-blockchain) from text attributes (via built-in spritesheet); incl. 2x/4x/8x zoom for bigger sizes and more

ISO SVG country flags (Images are public domain from https://github.com/koppi/iso-country-flags-svg-collection)

Easy image placeholders via Placehold.it

bitgen - bitcoin generative (inscription) image machinery incl. gen-brc721 & co

Kontrast is a testing tool that lets you build a frontend test suite to run against your test and production websites. It uses Selenium to take screenshots and ImageMagick to compare them. Kontrast then produces a detailed gallery of its test results.

TexPlay is a light-weight image manipulation framework for Ruby and Gosu

guard-rails-assets automatically generates JavaScript, CSS, Image files using Rails assets pipelie

= Ungulate According to Wikipedia, this can mean "hoofed animal". Camels have hooves. This is a gem for uploading and processing images using an Amazon Web Services stack. It comes with a few goodies: * ungulate_server.rb - simple queue runner that expects a YAML-encoded job description for R...

PNM is a pure Ruby library for creating, reading, and writing of PNM image files (Portable Anymap): PBM (Portable Bitmap), PGM (Portable Graymap), and PPM (Portable Pixmap).

Creates a contact sheet, a preview, of a video, usable as library or as a script. Based on VCS *NIX. Creating Thumbnails with libav, ffmpeg or mplayer and compose it with ImageMagick into nice looking sheets.

Allows building, tagging and pushing images and creating, starting, stopping and removing containers from within rake tasks.

A simple plugin to persist image dimensions.

Automatically identify LilyPond code snippets in Markdown blog posts and, during conversion to HTML, replace snippets with links to generated SVG images

little more magick when you upload image files (with SwfUpload and Dragonfly)