Quantizes a 32-bit RGBA PNG image to an 8 bit RGBA palette PNG
using the neuquant algorithm.

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License

BSD License

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User Reviews

  • Great program with lots of useful tools.

    1 user found this review helpful.
  • Checked to see how this library would quantize a RGBA true color image. This is for rendering scientific data that has up to 512 levels (or ~9 bit pallette, single hue from black to white), which is of course very limited, but where 1/3 to 1/5 of the data has variable alpha. It is a little slow taking ~8-10 sec to convert a 1024x1024 image (that I'm sure is fine for most purposes), but it does an amazing job building a PNG8 that is indistinguishable from the original image.

  • An essential image processing tool!

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Additional Project Details

User Interface

Command-line

Programming Language

C

Registered

2007-12-20