A practical image importer/loader. It wraps stb_image.h (ver:2.26 -2020.07.13-). Supported image formats are: JPEG, PNG, TGA, BMP, PSD, GIF(not animation), HDR, PIC, PNM. Checkout the Homepage for usage in Windows, MacOs, Linux or ARM

growi-image_converter is a converter that converts esa.io images to GROWI.

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

libravatar.org provides avatar image hosting (like gravatar.com). Their users may associate avatar images with email or openid. This rubygem can be used to generate libravatar avatar image URL

Pure Ruby analyzer of the GIF image format. Performs complete analysis of internal GIF block structure and streams it as an objects stream with metainformations of each block. Also can interpret internal structure by providing the simple object-like interface to base image file informations. Work...

A simple Jekyll plugin to optimize images using image_optim. Configuration and usage instructions can be found at https://github.com/ask616/jekyll-image-optim

Official Ruby On Rails gem for generating ImageBoss URLs

Has Placeholder Image is a Ruby on Rails gem that allows developers to generate placeholder images for models depending on the title or name attributes of model.

Resize images, lower quality to save bytes, rotate, crop, convert between formats, and anything else that the image_processing gem supports.

Pixavatar is a simple placeholder image generator that can be used as filler images where avatar images are missing

Simple image resize library without external program.

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 a...

This Ruby extension implements a DataMatrix encoder for Ruby. It is typically used to create semacodes, which are barcodes, that contain URLs. This encoder does not create image files or visual representations of the semacode. This is because it can be used for more than creating images, ...

A ruby gem for converting PDF documents into a series of images. This module is based off poppler_utils and ImageMagick.

This gem overrides image_tag to support retina resolution images using asset pipeline

Jammit is an industrial-strength asset packaging library for Rails, providing both the CSS and JavaScript concatenation and compression that you'd expect, as well as YUI Compressor and Closure Compiler compatibility, ahead-of-time gzipping, built-in JavaScript template support, an...

A responsive image gem for Rails and Carrierwave

Image/Flash extract width/height dimensions extractor

Manipulate images with minimal use of memory via ImageMagick / GraphicsMagick

A Ruby gem to convert images into ASCII for your awesome command-line applications