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chunky_png 1.3.0

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.

Gemfile:
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install:
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Versions:

  1. 1.4.0 - December 28, 2020 (355 KB)
  2. 1.3.15 - December 15, 2020 (355 KB)
  3. 1.3.14 - October 27, 2020 (355 KB)
  4. 1.3.13 - October 23, 2020 (346 KB)
  5. 1.3.12 - August 03, 2020 (346 KB)
  6. 1.3.0 - February 10, 2014 (311 KB)
Show all versions (68 total)

Development Dependencies (2):

rake >= 0
rspec ~> 2.2

Owners:

Authors:

  • Willem van Bergen

SHA 256 checksum:

b0d94986b6accf3a8a05f9cdf800fd0dcd3a96569f6207e9eea499000a340436

Total downloads 132,397,673

For this version 1,607,641

License:

MIT

Required Ruby Version: None

Links: