- From: Alan J. Flavell <flavell@a5.ph.gla.ac.uk>
- Date: Wed, 2 Feb 2000 23:40:31 +0000 (GMT)
- To: Chris Kreussling <CHRIS.KREUSSLING@ny.frb.org>
- cc: w3c-wai-gl@w3.org
On Wed, 2 Feb 2000, Chris Kreussling wrote: > PNG in its full specification is a superset of both GIF and JPG: > Anything that can be done in either can be done in PNG, and done > better. Then it is surprising that the PNG's own introduction makes no such claim, indeed it states: The Portable Network Graphics (PNG) format was designed to replace the older and simpler GIF format and, to some extent, the much more complex TIFF format. and Note that for transmission of finished truecolor images--especially photographic ones--JPEG is almost always a better choice. Although JPEG's lossy compression can introduce visible artifacts, these can be minimized, and the savings in file size even at high quality levels is much better than is generally possible with a lossless format like PNG. http://www.cdrom.com/pub/png/pngintro.html Best regards
Received on Wednesday, 2 February 2000 18:40:35 UTC