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
16177121
Releases
56
Current Version
1.3.5
Released
2015-10-28 00:00:00 UTC
First Release
2010-01-09 23:00:00 UTC
Depends on following gems
Depending Gems
105

Github wvanbergen/chunky_png

Watchers
746
Forks
63
Development activity
Less active
Last commit
2016-04-13 10:46:12 UTC

MiniMagick

Manipulate images with minimal use of memory via ImageMagick / GraphicsMagick

Rubygem mini_magick

Total Downloads
5226462
Releases
52
Current Version
4.5.0
Released
2016-03-20 00:00:00 UTC
First Release
2006-02-25 05:00:00 UTC

Github minimagick/minimagick

Watchers
1749
Forks
238
Development activity
Less active
Last commit
2016-03-25 09:20:15 UTC
Contributors
30
Issues

RMagick

RMagick is an interface between Ruby and ImageMagick.

Rubygem rmagick

Total Downloads
6481007
Releases
72
Current Version
2.15.3
Released
2015-07-21 00:00:00 UTC
First Release
2004-12-29 05:00:00 UTC

Github rmagick/rmagick

Watchers
201
Forks
41
Development activity
Less active
Last commit
2016-03-31 12:39:37 UTC
Contributors
25
Issues

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
130837
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
7

Github seattlerb/image_science

Watchers
120
Forks
53
Development activity
Inactive
Last commit
2016-03-30 10:01:18 UTC
Top contributors
Contributors
1
Issues

image_sorcery

A ruby ImageMagick/GraphicsMagick library that doesn't suck

Rubygem image_sorcery

Total Downloads
45293
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
314
Forks
21
Development activity
Inactive
Last commit
2013-01-21 21:17:51 UTC
Contributors
6
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
23064
Releases
11
Current Version
2.0.2
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
175
Forks
34
Development activity
Inactive
Last commit
2016-02-01 07:24:25 UTC
Top contributors
Contributors
5
Issues

skeptick

Thin ImageMagick DSL with smart command composition

Rubygem skeptick

Total Downloads
5111
Releases
4
Current Version
0.2.1
Released
2015-01-22 00:00:00 UTC
First Release
2013-02-03 00:00:00 UTC
Depends on following gems
Depending Gems
1

Github maxim/skeptick

Watchers
317
Forks
5
Development activity
Inactive
Last commit
2015-03-17 16:13:29 UTC
First commit
Top contributors
Contributors
2
Issues

paperclip-optimizer

paperclip-optimizer is a Paperclip processor for optimizing and minifying uploaded images.

Rubygem paperclip-optimizer

Total Downloads
56576
Releases
9
Current Version
2.0.0
Released
2015-02-01 00:00:00 UTC
First Release
2013-05-07 00:00:00 UTC
Depending Gems
0

Github janfoeh/paperclip-optimizer

Watchers
154
Forks
24
Development activity
Inactive
Last commit
2016-02-22 17:28:39 UTC
First commit
Top contributors
Contributors
7
Issues

Devil

Ruby bindings for DevIL cross platform image loading library

Rubygem devil

Total Downloads
45162
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
63
Forks
7
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
27
Forks
3
Development activity
Inactive
Last commit
2011-01-21 14:30:28 UTC
Top contributors
Contributors
3
Issues

mojo_magick

Simple Ruby stateless module interface to imagemagick.

Rubygem mojo_magick

Total Downloads
48421
Releases
16
Current Version
0.5.5
Released
2015-05-31 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
5
Forks
3
Development activity
Inactive
Last commit
2015-05-31 07:16:54 UTC
First commit
Top contributors
Contributors
2
Issues

core_image

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

Rubygem core_image

Total Downloads
7580
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
9
Forks
3
Development activity
Inactive
Last commit
2012-02-02 15:21:09 UTC
Top contributors
Contributors
1
Issues

image_squeeze

a library for automated lossless image optimization

Rubygem image_squeeze

Total Downloads
10927
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
5
Forks
2
Development activity
Inactive
Last commit
2012-07-17 21:36:46 UTC
First commit
Top contributors
Contributors
1
Issues

MIAConverter

Turns a video file into an animated gif.

Rubygem MIAConverter

Total Downloads
2019
Releases
2
Current Version
0.2.1
Released
2013-12-11 00:00:00 UTC
First Release
2013-12-10 00:00:00 UTC
Depends on following gems
Depending Gems
0

Github MartinJNash/MIAConverter

Watchers
2
Forks
1
Development activity
Inactive
Last commit
2013-12-11 01:13:40 UTC
First commit
Top contributors
Contributors
1
Issues
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