[BlindMath] Scanning braille for sight reading

[John G Heim]

I ended up changing my flatbed scanner settings to 900 dots per inch, 
gray scale. I think line art (black/white) would have worked too but my 
sighted helper said the gray scale looked a little better. But I think 
the main problem I had submitting the assignments as scans was that I 
sent them in tif format. I think the real resolution of the problem came 
when I converted my scans from tif to jpg.

But the good news is that scanning a page of braille really works. The 
sighted person I had looking at the scans never said she couldn't see 
the dots no matter what the flatbed scanner settings were. She said some 
images were more pleasant to look at but she was quite clear that she 
could easily make out the dots no matter what.

At 900 dpi gray scale images converted to jpg,each scan was 11Mb. I 
haven't tried it yet but a 300 dpi line art jpg would probably be only a 
megabyte or 2.



On 07/25/2017 09:01 AM, John G Heim wrote:
> I'm taking a braille class through Hadley School for the Blind. I am 
> trying to submit my homework assignments as scanned images of braille 
> pages for the instructor to sight-read. The instructor asked me to scan 
> them as photos but I don't know what that means. Does anybody have 
> experience scanning in braille and can tell me the best format, mode, 
> and dpi settings? I sent my instructor tif line-art at 300 dpi which 
> works well for OCR but that didn't work for sight-reading braille.
> 
>