W3C home > Mailing lists > Public > w3c-wai-ig@w3.org > July to September 2002

Re: do vector graphics enhance our concept of self?

From: jonathan chetwynd <j.chetwynd@btinternet.com>
Date: Fri, 26 Jul 2002 17:44:43 +0100
Message-ID: <006001c234c3$c0040070$c27027d9@RJCHETWYND>
To: "Jon Hanna" <jon@spin.ie>, "WAI List \(E-mail\)" <w3c-wai-ig@w3.org>

yes but PNG never seemed to really take off, so why?

----- Original Message -----
From: "Jon Hanna" <jon@spin.ie>
To: "WAI List (E-mail)" <w3c-wai-ig@w3.org>
Sent: Friday, July 26, 2002 5:37 PM
Subject: RE: do vector graphics enhance our concept of self?

> > my point was really that jpegs are quite a few years old, and bar
> > the silly
> > copyright issue, surely someone (in scandinavia?) could bring out a mark
> > version with transparency?
> > this might degrade quite nicely from SVG.
> IIRC the last JPEG standard was published in 2000, I'm not sure if it can
> used in JFIF though.
> I imagine that it would be quite difficult to reliably provide
> information along side JPEGs though. Certainly the mechanism GIF employs
> wouldn't be applicable. The only way I can think of right now would be to
> provide a transparency (or alpha if you want to go for bonus credit :)
> with the photograph, and then use a lossless form of compression
> gzip would be preferred over LZW :) on the mask. JFIF allows for
> application-specific data to be included, so you could do this in a
> backwards compatible manner.
> Just the use of two very different compression formats in the one file
> format begins to feel kludgy.
> If someone wants in the US wants to smuggle a Spec that does this across
> Iron Curtain to me here in the Free World I'll publish it on a
> you-can-only-patent-inventions-here-so-stick-your-lawsuit webserver, but I
> think I'd just use 24-bit PNGs instead.
Received on Friday, 26 July 2002 12:44:42 UTC

This archive was generated by hypermail 2.4.0 : Friday, 17 January 2020 20:36:10 UTC