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: Tue, 30 Jul 2002 13:03:38 +0100
Message-ID: <005101c237c1$25c10de0$0201a8c0@RJCHETWYND>
To: "Charles McCathieNevile" <charles@w3.org>
Cc: "David Woolley" <david@djwhome.demon.co.uk>, <w3c-wai-ig@w3.org>

Chaals

Well it does look impressive,
so I'm stuck moaning about the failure of an easy way to degrade to jpeg.

thanks again

----- Original Message -----
From: "Charles McCathieNevile" <charles@w3.org>
To: "jonathan chetwynd" <j.chetwynd@btinternet.com>
Cc: "David Woolley" <david@djwhome.demon.co.uk>; <w3c-wai-ig@w3.org>
Sent: Tuesday, July 30, 2002 12:48 PM
Subject: Re: do vector graphics enhance our concept of self?


> I have attached an SVG image. The file size is a bit bigger than the
listed
> 3.2k, because it downloads two jpeg images.
>
> But it shows photo-realistic transparent jpegs which can be animated to
move
> around like sprites.
>
> This was generated by Jim Ley's annotation tool - you load up a jpeg and
> trace around the bit you want, then say who it is.
>
> I found it by looking through his search tool -
> http://www.jibbering.com/rdf/foafwho.html
>
> The one modification I made to the code was to change the opacity value -
it
> had opacity="1" for both photos, and for one I made it opacity="0.5" (1
means
> not at all transparent, 0 means completely transparent). It is not
difficult
> to adapts Nick's tool to do this by default, or as an option.
>
> What this shows is that with SVG you can easily select a piece of a jpeg
you
> want, and use it as a photo-realistic transparent animated sprite. It adds
> around 1-2k per image. It works in the Adobe SVG plugin (available for
many
> browsers - I used it in iCab on MacOSX but it works in Explorer, Netscape,
> and compatible browsers. I haven't tested this yet in other substantial
SVG
> browsers such as Batik but expect it to work fine).
>
> Cheers
>
> Chaals
>
> On Tue, 30 Jul 2002, jonathan chetwynd wrote:
>
> >
> >Unfortunately, given our obsession with identity, if SVG is not capable
of
> >photorealistic representation, in a small file size, then we might then
seem
> >to need a (jpeg like?) high compression format, with transparency, and
> >capable of scaling. Alternatively if it were capable, perhaps a camera,
or
> >at least a conversion tool would be extremely popular.
> >
> >In terms of images, bandwidth and accessibility, this may well be one of
the
> >critical areas for development in the near future.
> >many images are just not accessible.
> >
> >jonathan
> >
> >
> >
> >
> >----- Original Message -----
> >From: "David Woolley" <david@djwhome.demon.co.uk>
> >To: <w3c-wai-ig@w3.org>
> >Sent: Monday, July 29, 2002 10:33 PM
> >Subject: Re: do vector graphics enhance our concept of self?
> >
> >
> >>
> >> > Can anyone point to realistic vector portraits, with a small file
size?
> >>
> >> That's really a research topic for low bandwidth telephones, although
> >> the games people may also have something, but I suspect it is
> >> proprietory and may still require a texture map, as JPEG etc.
> >>
> >> It seems to me, though that this mailing list is not a good place for
> >> asking the question.  If you are lucky, someone will know, but you
> >> are not targetting the question well.
> >>
> >> I'd try the BT Research web site, as they were interested in this sort
> >> of thing at one time.  TV broadcasters may be as well.
> >>
> >>
> >
> >
>
> --
> Charles McCathieNevile    http://www.w3.org/People/Charles  phone: +61 409
134 136
> W3C Web Accessibility Initiative     http://www.w3.org/WAI  fax: +33 4 92
38 78 22
> Location: 21 Mitchell street FOOTSCRAY Vic 3011, Australia
> (or W3C INRIA, Route des Lucioles, BP 93, 06902 Sophia Antipolis Cedex,
France)
>
Received on Tuesday, 30 July 2002 08:04:02 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Tuesday, 19 July 2011 18:14:05 GMT