The Ruby Toolbox - Know your options!

chunky_png

13.5
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.
 Popularity
Downloads
29,428,845
 Releases
Total releases
59
First release
Latest release

mini_magick

4.04
Manipulate images with minimal use of memory via ImageMagick / GraphicsMagick
 Popularity
Downloads
12,956,489
Stars
2,162
Forks
282
Watchers
51
 Releases
Total releases
58
First release
Latest release

rmagick

2.63
RMagick is an interface between Ruby and ImageMagick.
 Popularity
Downloads
10,432,165
Stars
367
Forks
82
Watchers
20
 Releases
Total releases
73
First release
Latest release

paperclip-optimizer

0.16
paperclip-optimizer is a Paperclip processor for optimizing and minifying uploaded images.
 Popularity
Downloads
237,127
Stars
187
Forks
32
Watchers
5
 Releases
Total releases
9
First release
Latest release

image_sorcery

0.13
A ruby ImageMagick/GraphicsMagick library that doesn't suck
 Popularity
Downloads
50,392
Stars
299
Forks
21
Watchers
8
 Releases
Total releases
7
First release
Latest release

skeptick

0.11
Thin ImageMagick DSL with smart command composition
 Popularity
Downloads
14,428
Stars
323
Forks
5
Watchers
18
 Releases
Total releases
4
First release
Latest release

image_science

0.07
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/
 Popularity
Downloads
154,607
 Releases
Total releases
13
First release
Latest release

mojo_magick

0.03
Simple Ruby stateless module interface to imagemagick.
 Popularity
Downloads
114,665
Stars
5
Forks
3
Watchers
3
 Releases
Total releases
16
First release
Latest release

fabien/im_magick

0.03
RMagick replacement which uses ImageMagick directly by constructing chainable commands
 Popularity
Stars
27
Forks
3
Watchers
2

devil

0.02
Ruby bindings for DevIL cross platform image loading library
 Popularity
Downloads
52,834
 Releases
Total releases
19
First release
Latest release

core_image

0.01
Simple image manipulation using Apple's Core Image technology. Scale, rotate, flip, convert, overlay, and more.
 Popularity
Downloads
9,292
Stars
9
Forks
2
Watchers
3
 Releases
Total releases
4
First release
Latest release

magickly

0.01
A service for image manipulation - built as an extensible wrapper of Imagemagick which handles caching, c/o the Dragonfly gem.
 Popularity
Downloads
27,960
 Releases
Total releases
11
First release
Latest release

image_squeeze

0.01
a library for automated lossless image optimization
 Popularity
Downloads
13,123
Stars
5
Forks
2
Watchers
1
 Releases
Total releases
6
First release
Latest release

MIAConverter

0.0
Turns a video file into an animated gif.
 Popularity
Downloads
2,913
Stars
2
Forks
1
Watchers
0
 Releases
Total releases
2
First release
Latest release