That may have to do with too much resolution picking up too many anomalies, like grains of the paper and smudges and the like. Glenn ----- Original Message ----- From: "Tony Baechler" <tony@xxxxxxxxxxxx> To: <speakup@xxxxxxxxxxxxxxxxx> Sent: Friday, November 06, 2015 4:30 AM Subject: Re: Scanning According to Project Gutenberg Distributed Proofreaders (pgdp.net if you're interested), they actually recommend not scanning at 600 DPI. They recommend 300 DPI for most books and 400 DPI in rare cases. I can confirm this to be the case in my experience. When I scan at the highest resolution, I actually get worse text results. Not only does 300 DPI scan faster, but seems to do a better job. Of course I don't know about non-English text. Maybe 400 DPI works better for other languages. On 11/5/2015 7:30 AM, John G Heim wrote: > I did a lot of experimentation while scanning in the D&D manual. I found > that I got best text recognition when I scanned in the page as line art. > My > scanner has a top resolution of 600 dots per inch. I don't know if that's > good or bad. It's is a really ancient scanner. Someone just gave it to me > because they were upgrading to Windows XP and it didn't have drivers. When > would that have been, 2001? But it still works great in linux. _______________________________________________ Speakup mailing list Speakup@xxxxxxxxxxxxxxxxx http://linux-speakup.org/cgi-bin/mailman/listinfo/speakup _______________________________________________ Speakup mailing list Speakup@xxxxxxxxxxxxxxxxx http://linux-speakup.org/cgi-bin/mailman/listinfo/speakup
