Image Processing

chunky_png

This pure Ruby library can read and write PNG images without depending on an external image library, like RMagick. It tries to be memory efficient and reasonably fast. It supports reading and writing all PNG variants that are defined in the specification, with one limitation: only 8-bit color depth is supported. It supports all transparency, interlacing and filtering options the PNG specifications allows. It can also read and write textual metadata from PNG files. Low-level read/write access to PNG chunks is also possible. This library supports simple drawing on the image canvas and simple operations like alpha composition and cropping. Finally, it can import from and export to RMagick for interoperability. Also, have a look at OilyPNG at http://github.com/wvanbergen/oily_png. OilyPNG is a drop in mixin module that implements some of the ChunkyPNG algorithms in C, which provides a massive speed boost to encoding and decoding.

Rubygem chunky_png

Total Downloads
5384849
Releases
51
Current Version
1.3.0
Released
2014-02-10 00:00:00 UTC
First Release
2010-01-09 23:00:00 UTC

Github wvanbergen/chunky_png

Watchers
527
Forks
36
Development activity
Active
Last commit
2014-02-13 19:12:27 UTC
Contributors
14
Issues
Wiki pages

RMagick

RMagick is an interface between Ruby and ImageMagick.

Rubygem rmagick

Total Downloads
3177470
Releases
63
Current Version
2.13.2
Released
2013-02-02 00:00:00 UTC
First Release
2004-12-29 05:00:00 UTC
Depends on following gems
Depending Gems
280

Github rmagick/rmagick

Watchers
627
Forks
92
Development activity
Inactive
Last commit
2013-11-03 19:53:29 UTC
Top contributors
Contributors
4
Issues
Wiki pages

MiniMagick

Manipulate images with minimal use of memory via ImageMagick / GraphicsMagick

Rubygem mini_magick

Total Downloads
1753434
Releases
25
Current Version
3.7.0
Released
2013-11-26 00:00:00 UTC
First Release
2006-02-25 05:00:00 UTC

Github minimagick/minimagick

Watchers
1045
Forks
164
Development activity
Less active
Last commit
2014-03-23 14:20:23 UTC

Image science

ImageScience is a clean and happy Ruby library that generates thumbnails -- and kicks the living crap out of RMagick. Oh, and it doesn't leak memory like a sieve. :) For more information including build steps, see http://seattlerb.rubyforge.org/

Rubygem image_science

Total Downloads
97655
Releases
12
Current Version
1.2.6
Released
2014-01-16 00:00:00 UTC
First Release
2006-12-13 05:00:00 UTC
Depends on following gems
Depending Gems
6

Github seattlerb/image_science

Watchers
104
Forks
49
Development activity
Inactive
Last commit
2014-01-16 03:01:35 UTC
Top contributors
Contributors
1
Issues

image_sorcery

A ruby ImageMagick/GraphicsMagick library that doesn't suck

Rubygem image_sorcery

Total Downloads
33644
Releases
7
Current Version
1.1.0
Released
2013-01-17 00:00:00 UTC
First Release
2012-06-09 00:00:00 UTC
Depends on following gems
Depending Gems
2

Github EricR/image_sorcery

Watchers
304
Forks
21
Development activity
Inactive
Last commit
2013-01-21 21:17:51 UTC
Contributors
6
Issues

skeptick

Thin ImageMagick DSL with smart command composition

Rubygem skeptick

Total Downloads
943
Releases
1
Current Version
0.1.0
Released
2013-02-03 00:00:00 UTC
First Release
2013-02-03 00:00:00 UTC
Depends on following gems
Depending Gems
0

Github maxim/skeptick

Watchers
274
Forks
2
Development activity
Inactive
Last commit
2013-12-05 22:35:20 UTC
First commit
Top contributors
Contributors
2
Issues

magickly

A service for image manipulation - built as an extensible wrapper of Imagemagick which handles caching, c/o the Dragonfly gem.

Rubygem magickly

Total Downloads
13411
Releases
10
Current Version
2.0.0
Released
2013-02-27 00:00:00 UTC
First Release
2011-04-19 00:00:00 UTC
Depends on following gems
Depending Gems
1

Github afeld/magickly

Watchers
137
Forks
22
Development activity
Less active
Last commit
2014-03-08 04:40:54 UTC
Top contributors
Contributors
4
Issues

paperclip-optimizer

paperclip-optimizer is a processor for Paperclip that allows you to optimize and minify uploaded JPEG and PNG files.

Rubygem paperclip-optimizer

Total Downloads
2979
Releases
4
Current Version
1.0.2
Released
2014-04-02 00:00:00 UTC
First Release
2013-05-07 00:00:00 UTC
Depends on following gems
Depending Gems
0

Github janfoeh/paperclip-optimizer

Watchers
83
Forks
7
Development activity
Less active
Last commit
2014-01-21 16:17:38 UTC
First commit
Top contributors
Contributors
3
Issues

Devil

Ruby bindings for DevIL cross platform image loading library

Rubygem devil

Total Downloads
29098
Releases
11
Current Version
0.1.9.5
Released
2010-10-07 11:00:00 UTC
First Release
2009-10-07 07:00:00 UTC
Depends on following gems
Depending Gems
2

Github banister/devil

Watchers
59
Forks
4
Development activity
Inactive
Last commit
2010-10-08 12:44:58 UTC
Top contributors
Contributors
1
Issues

Im magick

RMagick replacement which uses ImageMagick directly by constructing chainable commands

Github fabien/im_magick

Watchers
26
Forks
3
Development activity
Inactive
Last commit
2011-01-21 14:30:28 UTC
Top contributors
Contributors
3
Issues

image_squeeze

a library for automated lossless image optimization

Rubygem image_squeeze

Total Downloads
6612
Releases
6
Current Version
0.1.5
Released
2012-07-17 00:00:00 UTC
First Release
2010-05-17 07:00:00 UTC
Depends on following gems
Depending Gems
0

Github stopdropandrew/image_squeeze

Watchers
6
Forks
2
Development activity
Inactive
Last commit
2012-07-17 21:36:46 UTC
First commit
Top contributors
Contributors
1
Issues

mojo_magick

Simple Ruby stateless module interface to imagemagick.

Rubygem mojo_magick

Total Downloads
7298
Releases
14
Current Version
0.5.4
Released
2013-12-15 00:00:00 UTC
First Release
2011-08-28 00:00:00 UTC
Depends on following gems
Depending Gems
1

Github rcode5/mojo_magick

Watchers
3
Forks
2
Development activity
Less active
Last commit
2013-12-17 07:28:26 UTC
First commit
Top contributors
Contributors
2
Issues
Wiki pages

core_image

Simple image manipulation using Apple's Core Image technology. Scale, rotate, flip, convert, overlay, and more.

Rubygem core_image

Total Downloads
4274
Releases
4
Current Version
0.0.3.5
Released
2012-01-31 08:00:00 UTC
First Release
2012-01-24 08:00:00 UTC
Depends on following gems
Depending Gems
0

Github serogers/core_image

Watchers
5
Forks
0
Development activity
Inactive
Last commit
2012-02-02 15:21:09 UTC
Top contributors
Contributors
1
Issues
×

In order to continue, you must be signed in using your Github account.

If you're signing in using this account for the first time Github will ask for your permission to give access to your public user data to the Ruby Toolbox.

Although the Github Authorization page does not mention it, the request includes read-only access to your verified email address (user:email OAuth scope). This is neccessary so there's a way to notify you about comments, information about your accepted project edits and the like. You can review your notification settings on your account page once you're signed in.