chunky_png

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
5473349
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
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