[accessibleimage] Re: Imagine Cup, Kurzweil-NFB Reader, Black Sun, art sculpt

Lisa,

Yes, the filter can be turned on and off or even adjusted for size.  I
suppose I could even create some kind of heuristic for judging the distance
from a graphic and telling the scrubbers to ignore such things.

Very clear small print would be a requirement but would be difficult on
paper (newsprint for instance) that is not suited for clarity.  On a nice
photo quality paper, though, it could be done in 4 point type and be very
readable, I've never experimented with anything smaller.

Enjoy,
cdh

 

-----Original Message-----
From: accessibleimage-bounce@xxxxxxxxxxxxx
[mailto:accessibleimage-bounce@xxxxxxxxxxxxx] On Behalf Of Lisa Yayla
Sent: Wednesday, July 05, 2006 2:58 AM
To: accessibleimage@xxxxxxxxxxxxx
Subject: [accessibleimage] Re: Imagine Cup, Kurzweil-NFB Reader, Black Sun,
art sculpt

Hi Chris,
Would it be possible to turn the filter on and off? That the user could
control that? And if a font was designed to be super clear so small?
Thanks,
Lisa


accessibleimage@xxxxxxxxxxxxx skrev 4. juli 2006 kl. 19:27 +0000:
>OCR works by searching for edges in an image and then rendering them using
>an fft algorithm.  It then uses some very sophisticated pattern
>recognition
>algorithms to determine if something is a character or just schmootz. 
>Very
>small text presents a problem as a filter designed to remove speckles and
>other crud that may appear on the paper might think it is dirt or dust on
>the lens and remove it before the edge detection and OCR is even executed.


Lisa Yayla
Huseby Kompetansesenter 
Oslo Norway
lisa.yayla@xxxxxxxxxx

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