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Re: portable network graphics

From: Charles McCathieNevile <charles@w3.org>
Date: Tue, 11 Jul 2000 10:12:04 -0400 (EDT)
To: "Lloyd G. Rasmussen" <lras@loc.gov>
cc: w3c-wai-ig@w3.org
Message-ID: <Pine.LNX.4.20.0007111009450.22025-100000@tux.w3.org>
SVG exposes things through the DOM - a User Agent that conforms to the User
Agent Accessibility Guidelines will export this information. There are also
utilities available for getting the information out of images. If anyone is
interested in working in this area, the Evaluation and Repair Tools group -
http://www.w3.org/WAI/ER would be the place to go...

Charles

On Tue, 11 Jul 2000, Lloyd G. Rasmussen wrote:

  Reading inside PNG or SVG files isn't something screen readers can do, if
  they are really reading the screen.  If they are getting part of their
  information from something like MS Active Accessibility, then this might be
  possible.  This is more likely to work in self-voicing browsers like Home
  Page Reader, PWWebspeak, Brookestalk, etc.  But I don't think anyone is
  making use of text embedded in images.  
  
  At 06:19 PM 7/10/00 -0700, you wrote:
  >Can screen readers pick up png metadata?
  >
  >It seems that 'separating content from presentation' is a fair description
  >for 'making site accessible'.  Integrating the equivalent of an 'alt tag'
  >into an image file seems to be along these lines.  Is there anything going
  >on to get rid of alt tags and put that information somewhere else?
  >
  >
  Lloyd Rasmussen, Senior Staff Engineer
  National Library Service f/t Blind and Physically Handicapped
  Library of Congress    (202) 707-0535  <lras@loc.gov>
  <http://www.loc.gov/nls/>
  HOME:  <lras@sprynet.com>   <http://lras.home.sprynet.com
  

--
Charles McCathieNevile    mailto:charles@w3.org    phone: +61 (0) 409 134 136
W3C Web Accessibility Initiative                      http://www.w3.org/WAI
Location: I-cubed, 110 Victoria Street, Carlton VIC 3053
Postal: GPO Box 2476V, Melbourne 3001,  Australia 
Received on Tuesday, 11 July 2000 10:12:05 GMT

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