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pngnq

tool for optimizing PNG (Portable Network Graphics) images

Variants:
Pngnq is a tool for quantizing 32-bit RGBA PNG images to 8-bit RGBA pallete PNG. It's is an adaptation by Stuart Coyle of Greg Roelf's pnqquant. While pngquant uses a median cut algorithm, Pngnq uses Anthony Dekker's neuquant algorithm (http://members.ozemail.com.au/~dekker/NEUQUANT.HTML), generally resulting in better looking results than pngquant.

Optimizers (like pngcrush and optipng) optimize the compression, usually losslessly. pngnq quantizes colors down to 256 (or fewer) distinct RGBA combinations, which is quite lossy. Optimized PNGs are usually two to four times smaller than the 32-bit versions.

Homepage:
Package version:1.0-2
Architecture:i386
Distribution:Debian
Filename:pngnq_1.0-2_i386.deb

/usr/share/doc/pngnq/README

PNGNQ - PNG NEUQUANT
VERSION 0.5

USAGE: 

  pngnq [-vfhV][-s sample factor][-e extension][-d dir][-n colours][-Q f|n][input files]
  options:
     -v Verbose mode. Prints status messages.
     -f Force ovewriting of files.
     -s Sample factor. The neuquant algorithm samples pixels stepping by this value.
     -n Number of colours the quantized image is to contain. Range: 2 to 256. Defaults to 2
more»

/usr/share/doc/pngnq/NEWS.gz

PNGNQ Release Notes

1.0 - Added PorneL's improvements.
      These include dithering, gamma correction.
      Checked with pngsuite images.
      Cleaned up error reporting a bit.

/usr/share/man/man1/pngcomp.1.gz

PNGCOMP(1)                                                PNGCOMP(1)



NAME
       pngcomp - PNG (Portable Network Graphics) comparison tool

SYNOPSIS
       pngcomp [-vVh] image1.png image2.png

DESCRIPTION
       pngcomp  gives  some  basic  statistics  about the difference
       between two images. It was created as a  measure  of  various
       color quantization methods.

OPTIONS
       -v
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/usr/share/man/man1/pngnq.1.gz

PNGNQ(1)                    User Manuals                    PNGNQ(1)



NAME
       pngnq - quantiz
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/usr/share/doc/pngnq/changelog.Debian.gz

pngnq (1.0-2) unstable; urgency=low

  * Fix FTBFS with binutils-gold (Closes: #556065):
    - New p
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/usr/share/doc/pngnq/changelog.gz

May 2009:  Version 1.0 release. 
           Moved to using Kornel LesiƄski's codebase. Many changes
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/usr/share/doc/pngnq/copyright

This package was debianized by Nelson A. de Oliveira <naoliv@gmail.com> on
Tue, 11 Oct 2005 22:50:49
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