Re: question about accessible pictures

Lisa,

HTML 4.01 does not define a low resolution alternative to the SRC image of 
an IMAGE element and the UAAG documents do not require this feature.

Some browsers like Internet Explorer and Netscape Navigator 4.x do support 
an attribute for images called LOWSRC.  Apparently this is used if the user 
has slow Internet access.  The browser would load the LOWSRC image I guess 
while it continues to download the primary image.  I don't know if you can 
set the browser to always load the lowsrc if it is available.

Hope this helps,
Jon


At 10:45 AM 7/26/2002 +0200, Lisa Yayla wrote:

>Hi,
>I am a reader of this list. I have a question
>and  hope it isn't too stupid, and not wasting
>your time.
>
>I work with tactile graphics for the blind and
>visually impaired.
>
>With alternative text I know there is long
>discription tag and etc. I was wondering
>if there is something similar for a graphic that
>is alternative to the regular graphic.
>
>I am thinking of a tag for a graphic that is specially
>designed for graphics on microcapsule paper (a black and
>white gif that is later copied to a special paper)or an included
>embosser file or for visually impaired an adapted graphic.
>
>Something similar to the low source for graphics which wouldn't
>show up for most but there and available.
>
>Thank you for your time.
>
>Lisa Yayla
>-----Opprinnelig melding-----
>Fra: Jon Gunderson [mailto:jongund@uiuc.edu]
>Sendt: 24. juli 2002 20:54
>Til: w3c-wai-ua@w3.org
>Emne: AGENDA: W3C User Agent Teleconference 25 July 2002
>
>
>
>W3C User Agent Telecon for July 25th, 2002
>
>Chair: Jon Gunderson
>Date: Thursday, 25 July 2002
>Time: 2:00-3:30 pm Boston Local Time, USA (18:00-19:30 UTC/GMT)
>Call-in: Longfellow Bridge (+1) (617) 252-1038
>
>Agenda
>
>Review Action Items
>
>Discussion
>
>1. Comments on 8 July UAAG working draft
>http://www.w3.org/WAI/UA/WD-UAAG10-20020708/
>
>2. Updating implementation report and indentifying requirements with low
>
>implementation experience
>
>3. Last call scheduling and expectations
>
>4. Draft test suites
>http://www.w3.org/WAI/UA/TS/uaag-html401-testsuite.html
>
>
>Open Action Items
>
>IJ: Add GECKO-API as reference in 6.4 as well as 6.2.
>Source:
>http://lists.w3.org/Archives/Public/w3c-wai-ua/2002JulSep/0020.html
>
>IJ: Modifications to Checkpoint 4.1
>Change second sentence in bullet one to "Text rendered at different
>sizes
>should scale proportionally."
>Clarify that rounding may occur and is appearing.
>Clarify that 4.1-4.3 are for content only by adding "content" to
>provision one.
>Source:
>http://lists.w3.org/Archives/Public/w3c-wai-ua/2002JulSep/0020.html
>
>IJ: Review whether to add word "content" in remaining checkpoints where
>content only is meant.
>Source:
>http://lists.w3.org/Archives/Public/w3c-wai-ua/2002JulSep/0020.html
>
>IJ: In second sufficient technique, delete "so that the user may
>position
>them independently."
>Source:
>http://lists.w3.org/Archives/Public/w3c-wai-ua/2002JulSep/0020.html
>
>IJ: - Add a statement to 6.2 in normative exclusion that exporting out
>of
>process may be useful.
>Source:
>http://lists.w3.org/Archives/Public/w3c-wai-ua/2002JulSep/0020.html
>
>IJ: For checkpoint 4.14: Indicate in Note that allowing the user to
>select
>more than one style sheet may be a useful way to implement other
>requirements of this document. Also, if the user agent offers several
>default style sheets, the user agent can also use these to satisfy some
>requirements (e.g., available on the Web; this would allow user agents
>to
>improve accessiblity of deployed user agents).
>Source:
>http://lists.w3.org/Archives/Public/w3c-wai-ua/2002JulSep/0020.html
>
>JG: Write up user scenarios for why non-text-based highlighting
>important
>for users; notably which users.
>Source:
>http://lists.w3.org/Archives/Public/w3c-wai-ua/2002AprJun/0027.html
>See for additional questions:
>http://lists.w3.org/Archives/Public/w3c-wai-ua/2002AprJun/0029.html
>
>JG: Add implementation of Checkpoint 3.1 from Konqueror
>Source:
>http://lists.w3.org/Archives/Public/w3c-wai-ua/2002AprJun/0177.html
>
>JG: Add user style sheets for outline view requirements in Konqueror,
>Opera, Amaya and IE to implementation report for Checkpoint 10.5 Outline
>view
>Source:
>http://lists.w3.org/Archives/Public/w3c-wai-ua/2002AprJun/0177.html
>
>JG: Acrobat 5.0 generates a navigation view, so implementation of
>Checkpoint 10.5
>Source:
>http://lists.w3.org/Archives/Public/w3c-wai-ua/2002AprJun/0177.html
>
>JG: Add user style sheets as an implementation of configuring outline
>view,
>checkpoint 9.10
>Source:
>http://lists.w3.org/Archives/Public/w3c-wai-ua/2002AprJun/0177.html
>
>JG: Add implementation of 5.3 Manual viewport open with Mozilla,
>Konqueror
>and Snufin
>Source:
>http://lists.w3.org/Archives/Public/w3c-wai-ua/2002AprJun/0177.html
>
>JG: Add to implementation report of Checkpoint 4.4:
>PlexTalk by Plextor (audio, http://www.plextalk.org/)
>Victor Reader by VisuAide (audio, http://www.visuaide.com/dtbsol.html)
>Victor Soft reader by VisuAide (audio,
>http://www.visuaide.com/dtbsol.html)
>LpPlayer by Labyrinten (audio,
>http://www.labyrinten.se/english/index.html)
>eNounce (audio and video, http://www.enounce.com/)
>Source:
>http://lists.w3.org/Archives/Public/w3c-wai-ua/2002AprJun/0177.html
>
>DP: Contact Loretta for information about how Adobe implements MSAA to
>get
>or provide information about rendered information in Acrobat Reader (for
>
>example).
>Source:
>http://lists.w3.org/Archives/Public/w3c-wai-ua/2002JulSep/0020.html
>
>Completed Action Items
>
>JG: Contact Lofton Henderson to schedule meeting to look at Colin's test
>
>suite progress.
>Source:
>http://lists.w3.org/Archives/Public/w3c-wai-ua/2002JulSep/0020.html
>Done: In process of seeing how many QA people can come
>
>TL: Send to the UAWG a pointer to text about the functionalities
>available
>through MSAA for access to rendering information (for techniques for
>6.4)
>Source:
>http://lists.w3.org/Archives/Public/w3c-wai-ua/2002JulSep/0020.html
>Done:
>http://lists.w3.org/Archives/Public/w3c-wai-ua/2002JulSep/0019.html
>
>
>Jon Gunderson, Ph.D., ATP
>Coordinator of Assistive Communication and Information Technology
>Division of Rehabilitation - Education Services
>MC-574
>College of Applied Life Studies
>University of Illinois at Urbana/Champaign
>1207 S. Oak Street, Champaign, IL  61820
>
>Voice: (217) 244-5870
>Fax: (217) 333-0248
>
>E-mail: jongund@uiuc.edu
>
>WWW: http://www.staff.uiuc.edu/~jongund
>WWW: http://www.w3.org/wai/ua

Jon Gunderson, Ph.D., ATP
Coordinator of Assistive Communication and Information Technology
Division of Rehabilitation - Education Services
MC-574
College of Applied Life Studies
University of Illinois at Urbana/Champaign
1207 S. Oak Street, Champaign, IL  61820

Voice: (217) 244-5870
Fax: (217) 333-0248

E-mail: jongund@uiuc.edu

WWW: http://www.staff.uiuc.edu/~jongund
WWW: http://www.w3.org/wai/ua

Received on Friday, 26 July 2002 13:09:07 UTC