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[ Bron: pngquant  ]

Pakket: pngquant (1.0-4)

PNG (Portable Network Graphics) image optimising utility

pngquant is a command-line conversion utility to quantize and dither truecolor PNG images, especially those with a full alpha channel, down to 8-bit (or smaller) RGBA-palette PNGs. Such images are usually two to four times smaller than the full 32-bit versions, and partial transparency is preserved quite nicely. This makes pngquant especially useful both for Web sites and for PlayStation 2 development, where one of the texture formats is RGBA-palette-based (though not PNG-compressed). This is the same technique used for many of the images on the Miscellaneous Transparent PNGs page (http://www.libpng.org/pub/png/pngs-img.html), and the results are often indistinguishable from the original, truecolor PNG images.

Optimizers (like pngcrush and optipng) optimize the compression, usually losslessly, while pngquant quantizes colors down to 256 (or fewer) distinct RGBA combinations, which is lossy.

Tags: Implemented in: C, User Interface: Command Line, Role: Program, Scope: Utility, Purpose: Compressing, Data Conversion, Works with: Image, Raster Image, Supports Format: PNG, Portable Network Graphics

Andere aan pngquant gerelateerde pakketten

  • depends
  • recommends
  • suggests
  • dep: libc0.1 (>= 2.3) [kfreebsd-amd64, kfreebsd-i386]
    GNU C Bibliotheek: Gedeelde bibliotheken
    Ook een virtueel pakket geboden door: libc0.1-udeb
  • dep: libc0.3 (>= 2.7-1) [hurd-i386]
    GNU C Bibliotheek: Gedeelde bibliotheken
    Ook een virtueel pakket geboden door: libc0.3-udeb
  • dep: libc6 (>= 2.5) [avr32]
    GNU C Bibliotheek: Gedeelde bibliotheken
    Ook een virtueel pakket geboden door: libc6-udeb
    dep: libc6 (>= 2.5-5) [m68k]
    dep: libc6 (>= 2.7-1) [niet alpha, avr32, hurd-i386, ia64, kfreebsd-amd64, kfreebsd-i386, m68k]
  • dep: libc6.1 (>= 2.7-1) [alpha, ia64]
    GNU C Bibliotheek: Gedeelde bibliotheken
    Ook een virtueel pakket geboden door: libc6.1-udeb
  • dep: libpng12-0 (>= 1.2.13-4)
    PNG bibliotheek - runtime
  • dep: zlib1g (>= 1:1.1.4)
    compressiebibliotheek - programma's

pngquant downloaden

Pakket downloaden voor alle beschikbare platforms
Platform Pakketgrootte Geïnstalleerde grootte Bestanden
alpha 20,3 kB88 kB [overzicht]
amd64 18,6 kB84 kB [overzicht]
armel 18,6 kB80 kB [overzicht]
avr32 (unofficial port) 17,5 kB76 kB [overzicht]
hppa 19,8 kB80 kB [overzicht]
hurd-i386 17,7 kB80 kB [overzicht]
i386 17,5 kB80 kB [overzicht]
ia64 24,7 kB104 kB [overzicht]
kfreebsd-amd64 18,3 kB58 kB [overzicht]
kfreebsd-i386 17,4 kB54 kB [overzicht]
m68k (unofficial port) 17,3 kB80 kB [overzicht]
mips 19,1 kB84 kB [overzicht]
mipsel 19,1 kB84 kB [overzicht]
powerpc 19,0 kB80 kB [overzicht]
s390 19,0 kB80 kB [overzicht]
sparc 18,3 kB80 kB [overzicht]