Date: Thu, 29 Jan 2009 15:11:46 +0200 From: "Reko Turja" <reko.turja@liukuma.net> To: "Gary Kline" <kline@thought.org>, "Andrew Gould" <andrewlylegould@gmail.com> Cc: FreeBSD Mailing List <freebsd-questions@freebsd.org> Subject: Re: OCR... Message-ID: <E90827F901134030B951FC852CEB4B01@rivendell> In-Reply-To: <20090129022349.GB34877@thought.org> References: <20090128040802.GA94236@thought.org><319D789FD18042DBB7A19571DA26E5AE@rivendell><20090128192211.GB22208@thought.org><d356c5630901281132g232f9b60y70c7ed4f750e4428@mail.gmail.com><20090128230916.GA29328@thought.org><d356c5630901281733o52f2c2d4u84f4435ba8a2fcbb@mail.gmail.com> <20090129022349.GB34877@thought.org>
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-------------------------------------------------- From: "Gary Kline" <kline@thought.org> Sent: Thursday, January 29, 2009 4:23 AM To: "Andrew Gould" <andrewlylegould@gmail.com> Cc: "Reko Turja" <reko.turja@liukuma.net>; "FreeBSD Mailing List"=20 <freebsd-questions@freebsd.org> Subject: Re: OCR... > On Wed, Jan 28, 2009 at 07:33:41PM -0600, Andrew Gould wrote: >> On Wed, Jan 28, 2009 at 5:09 PM, Gary Kline <kline@thought.org>=20 >> wrote: >> >> > On Wed, Jan 28, 2009 at 01:32:57PM -0600, Andrew Gould wrote: >> > > On Wed, Jan 28, 2009 at 1:22 PM, Gary Kline <kline@thought.org>=20 >> > > wrote: >> > > > well, damage is probably done. how can i check the=20 >> > > > resolution? >> > > > i tried to increase it by creating huge ppm and tif=20 >> > > > files, but >> > > > then that's really absurd since there can only be just=20 >> > > > so much >> > > > data per image. i _could_ try xv and jpeg and=20 >> > > > smoothing image Yeah, if the image resolution is already at 72DPI, there's sadly no=20 trick in the world that can reliably return the "lost" information.=20 I've read some horrid scans with low resolution in Finereader, and it=20 can grab much of the information nicely. With low resolution be=20 prepared to manually correcting problem spots though. Only reliable=20 way to quesstimate resolution is the font size when at 100% in the=20 screen. If the text is about 10 pixels high, the information has=20 probably been stored in 72DPI for space saving purposes. Wasn't aware of the FreeBSD/Linux backend, but if that works it'd be=20 great - haven't myself visited their website in ages as the version I=20 have does the job I got it for. -Reko=20
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