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PNG

by Mr. Muskrat (Canon)

on Dec 18, 2002 at 18:00 UTC ( [id://220911]=note: print w/replies, xml )

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in reply to Re:x2 editing gifs with Perl
in thread editing gifs with Perl

The Portable Network Graphics (or PNG) file format features lossless compression, alpha channels, gamma correction and two-dimensional interlacing. PNGs (generally) compress better than GIFs by 5 - 25%. PNG supports 48-bit truecolor and 16-bit grayscale. Just remember that using truecolor images come at a cost of greatly increased file size.

Recommended reading: everything at the PNG Home Site.

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Re: PNG
by rozallin (Curate) on Dec 18, 2002 at 21:37 UTC

Versions 4 and Up of the "Big Two" (except IE 4 for the Macintosh) can view PNG images but support for advanced features such as gamma correction and alpha transparency remain broken and buggy.

-- Rozallin J. Thompson
The Webmistress who doesn't hesitate to use strict;

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