[accessibleimage] Resend of previous message

Hello listers.  There seem to be some gremlins associated with this 
list.  I sent this message earlier today, but it didn't arrive at the list 
or in Lisa's mailbox.  She suggested resending.  Apparanetly others are 
having trouble making the list work too??

John


>Date: Fri, 02 Apr 2004 09:23:05 -0800
>To: accessibleimage@xxxxxxxxxxxxx
>From: John Gardner <John.Gardner@xxxxxxxx>
>Subject: Re: [accessibleimage] Color code
>
>Hi Lisa.  My major question about your color suggestion is whether blind 
>readers will find it intuitive enough to be able to learn and then 
>remember so that a few months later they'll be able to tell what color 
>they're feeling.  A lesson from math - One of the major difficulties in 
>reading math braille is that uncommon symbols are difficult to 
>remember.  I always worry about the "intuitiveness" of symbols, and I 
>worry that yours will not be.  Heidi Smart's simple scheme gives less 
>information but at least it's pretty intuitive, and I am confident a blind 
>person can remember what the symbols mean.  Provided they are English-speakers.
>
>Do you know that Ed Anczurowski, the president of Tactile Visions, the 
>Canadian company that developed a nice polymer tactile printing process 
>that makes very nice graphics, began working on tactile graphics in order 
>to test an idea for providing color information?  He is a scientist who 
>knows that any color can be expressed in three primary colors, and his 
>scheme is to produce a tactile pattern in which lines in three different 
>directions tell the intensity of that particular color component?  We've 
>experimented a lot with a similar scheme for Tiger using the variable dot 
>height as an intensity indicator.  Neither Ed nor we have really pushed 
>the idea into a lot of testing to learn about its intuitiveness 
>however.  Anybody who wants to start a big research project to answer 
>questions about how to represent color accurately would probably get a lot 
>of help from Ed or ViewPlus.  Unfortunately, testing intuitiveness of just 
>about anything is a really difficult research project.
>
>John
>
>
>
>
>At 02:33 AM 4/2/2004, Lisa Yayla wrote:
>>Dear Colleagues,
>>
>>I've had an idea of how to color code information
>>for use , say, in adapted graphics.  It is a tool that
>>I thought could be used there.
>>I am writing hoping to get some feed back on this
>>idea.
>>Thanks,
>>Lisa
>>
>>Color coding
>>
>>This is a way to convey color information
>>in an graphic where this is desired.
>>The idea is to convey information, the idea is not
>>a way of experiencing color.
>>This would be useful where one wants to convey
>>information but have a limited amount of area.
>>The information is language independent. Therefore
>>one does not need to translate such things.
>>
>>The idea is that the code uses two Braille cells to convey the
>>information. Two variations, 6 point Braille and 8 point Braille.
>>Each point  in the first cell has a designated color information.
>>For 6 point Braille the second cell includes black, white, intensity
>>information and a marker point.
>>In 8 point  Braille the second cell is just intensity information and a
>>marker point.
>>Two  cells are always used.
>>In 6 point Braille point 6 of the second cell is always used, as a marker.
>>In 8 point Braille point 8 of the second cell is always used, as a marker.
>>
>>The intensity could also be decided from before using
>>scales.
>>
>>with 6 point
>>First cell color primary and secondary color
>>Point 1 is yellow
>>point 2 is red
>>point 3 is blue
>>point 4 is purple
>>point 5 is green
>>point 6 is orange
>>
>>6 point
>>Second cell intensity
>>point 1 is white
>>point 2 is black
>>point 3 is light
>>point 4 is medium
>>point 5 is dark
>>point 6 is a marker, and always used
>>
>>
>>With 8 point Braille
>>First cell color primary and secondary
>>
>>point 1 yellow
>>point 2 red
>>point 3 blue
>>point 4 white
>>point 5 purple
>>point 6 green
>>point 7 orange
>>point 8 black
>>
>>8 point Braille
>>Second cell  intensity (shows grade of intensity, saturation)
>>point 1 light
>>point 2 darker
>>point 3 more dark
>>point 4 darker than
>>point 5 darker than 4
>>point 6 darker than 5
>>point 7 darker than
>>point 8 marker point
>>
>>Thanks for reading.
>>Regards,
>>Lisa
>>
>>
>>Lisa Yayla
>>Huseby Kompetansesenter
>>Oslo Norway
>>lisa.yayla@xxxxxxxxxx

John A. Gardner
Professor and Director, Science Access Project
Department of Physics
Oregon State University
Corvallis, OR 97331
tel: (541) 737 3278
FAX: (541) 737 1683
        SAP URL: http://dots.physics.orst.edu/

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