pngnq 0.4.1 review

License: GPL (GNU General Public License) File size: 16K Developer: Stuart Coyle

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pngnq quantizes PNG images to 8-bit palette mode with alpha channel support.

This is a variant on Greg Roelf's pngquant program, using the Neuquant algorithm by Anthony Dekker instead of a median cut filter.

pngnq has been tested on a range of images, and produces nice results.

What's New in This Release:
A -n option was added for choosing the number of colours to quantize to.
A -V option was added for printing version info.
A bug that caused only 3/4 of pixels to be scanned was fixed.
Quantized images should now be more accurate.
A simple image comparison program was added.