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chunky_png 1.3.7

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.

Versions:

  1. 1.3.7 - August 31, 2016 (343 KB)
  2. 1.3.6 - June 19, 2016 (342 KB)
  3. 1.3.5 - October 28, 2015 (342 KB)
  4. 1.3.4 - February 16, 2015 (341 KB)
  5. 1.3.3 - October 24, 2014 (338 KB)
Show all versions (59 total)

Development Dependencies:

Authors:

  • Willem van Bergen

Owners:

6053d8e7518ed101dbbd41dd4c1cc2ae

SHA 256 checksum:

b013d9382be8b9b10e1ad194e1f8840c406cf89494752ff255f95ce71ff13fdc

Total downloads 18,857,146

For this version 180,651

Gemfile:
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install:
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License:

MIT

Required Ruby Version: >= 0

Links: