Image Processing

Manipulate images with minimal use of memory via ImageMagick / GraphicsMagick

mini_magick 71,595,192 Downloads Last release November 6, 2020 4:20pm

minimagick/minimagick Last commit January 11, 2021 5:03pm

RMagick is an interface between Ruby and ImageMagick.

rmagick 22,183,770 Downloads Last release February 24, 2021 1:32am

rmagick/rmagick Last commit not available

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.

chunky_png 66,781,083 Downloads Last release December 28, 2020 5:19pm

wvanbergen/chunky_png Last commit December 28, 2020 6:46pm