Image Processing
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1.3
RMagick is an interface between Ruby and ImageMagick.
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Activity
6.2
Manipulate images with minimal use of memory via ImageMagick
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Activity
3.59
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 https://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.
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Activity
1.61
ruby-vips is a binding for the libvips image processing library. It is fast
and it can process large images without loading the whole image in memory.
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Activity
0.12
Ruby bindings for cairo
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Activity
0.25
Ruby/Pango is a Ruby binding of pango-1.x based on GObject-Introspection.
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Activity
0.04
Ruby/RSVG2 is a Ruby binding of librsvg-2.x.
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Activity
0.1
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/
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0.13
paperclip-optimizer is a Paperclip processor for optimizing and minifying uploaded images.
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Activity
0.1
Thin ImageMagick DSL with smart command composition
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0.0
Ruby bindings for DevIL cross platform image loading library
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Activity
0.11
A ruby ImageMagick/GraphicsMagick library that doesn't suck
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Activity
0.02
Simple Ruby stateless module interface to imagemagick.
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0.0
dHash and IDHash perceptual image hashing/fingerprinting
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0.0
A service for image manipulation - built as an extensible wrapper of Imagemagick which handles caching, c/o the Dragonfly gem.
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0.0
a library for automated lossless image optimization
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0.0
Turns a video file into an animated gif.
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0.01
Simple image manipulation using Apple's Core Image technology. Scale, rotate, flip, convert, overlay, and more.
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0.02
RMagick replacement which uses ImageMagick directly by constructing chainable commands