They are visually similar. If they were not the OCR would not confuse them. The O and the 0 look more alike than the I and the 1, but a person with normal eyesight should have no trouble telling the difference at a glance, at least a literate normally sighted person. I suppose if the 0 or O were isolated it might confuse a normally sighted person momentarily, but it should at least be easy to figure it out from context. Note, though, that there are a lot of sighted people who just think they are normally sighted. They might actually need glasses. For people like that who have some untreated visual deficiency it might be harder to tell the difference.
_ _ _"I contend that we are both atheists. I just believe in one fewer god than you do. When you understand why you dismiss all the other possible gods, you will understand why I dismiss yours"
Stephen Roberts The Militant: http://www.themilitant.com Pathfinder Press: http://www.pathfinderpress.com Granma International: http://www.granma.cu/ingles/index.html----- Original Message ----- From: "Melissa Smith" <mdsmith25@xxxxxxxx>
To: <bksvol-discuss@xxxxxxxxxxxxx> Sent: Sunday, April 11, 2010 10:18 AM Subject: [bksvol-discuss] Question for sighted volunteers
I know that it is a common scanning error for the letter I to be recognized as a number 1 and for the letter o to be recognized as the number 0. My question is, visually what is the difference? It is very distracting when reading with speech output. This is an error that that the outsourcers seem to make quite often. Yes, when I notice this, I will make quality reports, but I'm just wondering if these characters are so visually alike that they can't tell, or what is an easy way for sighted volunteers or outsourcers to recognize this common mistake.Thanks, - Melissa Smith To unsubscribe from this list send a blank Email to bksvol-discuss-request@xxxxxxxxxxxxxput the word 'unsubscribe' by itself in the subject line. To get a list of available commands, put the word 'help' by itself in the subject line.
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