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Groups > sci.physics > #549485
| From | Fabian Russell <fb@zen.info> |
|---|---|
| Newsgroups | sci.physics |
| Subject | Re: Hey Odd! |
| Date | 2016-01-31 05:47 +0000 |
| Organization | NewsGuy - Unlimited Usenet $23.95 |
| Message-ID | <n8k75011mee@news3.newsguy.com> (permalink) |
| References | (7 earlier) <7tOqy.216391$Gc6.104488@fx08.iad> <n8gpi842h9j@news6.newsguy.com> <ag_qy.238688$8V1.13638@fx28.iad> <n8j0j50i49@news6.newsguy.com> <4qgry.166771$Jt4.56746@fx22.iad> |
On Sat, 30 Jan 2016 23:52:15 -0500, benj wrote: > > Gosh, oddly ancient books are on acid-free paper until everyone got so > cheap. > Ancient books contain acid-free paper? I don't know much about the history of paper making. I'll have to find more about this. Whenever I peruse the old collection at the university library near my home I find most books have brittle pages. > > I do currently have a problem I'm struggling with. It's an adventure > game "Zork" game that a bunch of us wrote back in the 70s. > Unfortunately all I have now is a line printer printout of the source > code (written in JCL) You KNOW what trash line printer paper is! Been > trying to scan and recognize the printout but even with modern software > and careful tweaking of contrast, gamma, etc, the best I've been able to > do so far is get about 50% of it correct. > You may need to threshold the scanned images so the result is bi-tonal or black/white. You may also need to try a trainable OCR, where the software "learns" the particular typeface that is used. The open source (free) Tesseract OCR is trainable: https://github.com/tesseract-ocr > > Oddly the one thing that > doesn't convert is .jpg files of pages. You can look at them with an > eyeball and read them just fine. But the scanning software gives you > nothing but errors. However scanning with .tiff files and it's happy as > a clam. > JPEG compression is based on the discrete cosine transform which is essentially a fourier transform. Any sharp edges, such as the boundaries of text typeface, will experience severe ringing distortion. This is why JPEG should NEVER be used to compress text or similar patterns. TIFF, if it is compressed at all, is usually compressed with a different kind of algorithm and can be used on any type of image. > > Something effective is clearly waiting to be invented. > Of course. It's only a matter of time. The digital revolution is never going to stop. Sooner or later printed material, like the old "wet" photographic technology, will be supplanted. Regarding photography, I still recall how it was about ten years ago when many people were still defending film cameras and film technology. They would decry the new digital cameras and sensors as being inferior and desperately cling to the old methods. But now there is a barely a whimper from that crowd. They have lost the battle and have been converted to the new digital ways. The same will happen with the dead-tree book adherents.
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Hey Odd! benj <none@gmail.com> - 2016-01-28 17:31 -0500
Re: Hey Odd! Odd Bodkin <bodkinodd@gmail.com> - 2016-01-28 16:35 -0600
Re: Hey Odd! benj <none@gmail.com> - 2016-01-28 17:47 -0500
Re: Hey Odd! Odd Bodkin <bodkinodd@gmail.com> - 2016-01-28 17:12 -0600
Re: Hey Odd! Odd Bodkin <bodkinodd@gmail.com> - 2016-01-28 17:16 -0600
Re: Hey Odd! Mahipal <mahipal7638@gmail.com> - 2016-01-28 16:14 -0800
Re: Hey Odd! benj <none@gmail.com> - 2016-01-28 20:05 -0500
Re: Hey Odd! kenseto <setoken@att.net> - 2016-01-29 12:34 -0800
Re: Hey Odd! Mahipal <mahipal7638@gmail.com> - 2016-01-29 13:36 -0800
Re: Hey Odd! benj <none@gmail.com> - 2016-01-28 19:55 -0500
Re: Hey Odd! Odd Bodkin <bodkinodd@gmail.com> - 2016-01-29 07:45 -0600
Re: Hey Odd! benj <none@gmail.com> - 2016-01-29 12:29 -0500
Re: Hey Odd! Fabian Russell <fb@zen.info> - 2016-01-29 17:47 +0000
Re: Hey Odd! Odd Bodkin <bodkinodd@gmail.com> - 2016-01-29 12:19 -0600
Re: Hey Odd! Fabian Russell <fb@zen.info> - 2016-01-29 18:43 +0000
Re: Hey Odd! jimp@specsol.spam.sux.com - 2016-01-29 19:17 +0000
Re: Hey Odd! Fabian Russell <fb@zen.info> - 2016-01-29 21:59 +0000
Re: Hey Odd! Odd Bodkin <bodkinodd@gmail.com> - 2016-01-29 16:37 -0600
Re: Hey Odd! jimp@specsol.spam.sux.com - 2016-01-29 22:40 +0000
Re: Hey Odd! Fabian Russell <fb@zen.info> - 2016-01-29 23:38 +0000
Re: Hey Odd! Odd Bodkin <bodkinodd@gmail.com> - 2016-01-31 13:19 -0600
Re: Hey Odd! Odd Bodkin <bodkinodd@gmail.com> - 2016-01-29 14:27 -0600
Re: Hey Odd! Fabian Russell <fb@zen.info> - 2016-01-29 22:11 +0000
Re: Hey Odd! Odd Bodkin <bodkinodd@gmail.com> - 2016-01-29 16:44 -0600
Re: Hey Odd! benj <none@gmail.com> - 2016-01-30 02:33 -0500
Re: Hey Odd! "Y.Porat" <y.y.porat@gmail.com> - 2016-01-30 22:53 -0800
Re: Hey Odd! Sergio <invalid@invalid.com> - 2016-01-29 12:25 -0600
Re: Hey Odd! Fabian Russell <fb@zen.info> - 2016-01-29 18:38 +0000
Re: Hey Odd! Odd Bodkin <bodkinodd@gmail.com> - 2016-01-29 14:23 -0600
Re: Hey Odd! Fabian Russell <fb@zen.info> - 2016-01-29 22:20 +0000
Re: Hey Odd! Odd Bodkin <bodkinodd@gmail.com> - 2016-01-29 16:52 -0600
Re: Hey Odd! Fabian Russell <fb@zen.info> - 2016-01-29 23:54 +0000
Re: Hey Odd! Odd Bodkin <bodkinodd@gmail.com> - 2016-01-30 12:29 -0600
Re: Hey Odd! Fabian Russell <fb@zen.info> - 2016-01-30 20:43 +0000
Re: Hey Odd! benj <none@gmail.com> - 2016-01-31 00:07 -0500
Re: Hey Odd! Fabian Russell <fb@zen.info> - 2016-01-31 05:17 +0000
Re: Hey Odd! benj <none@gmail.com> - 2016-01-31 01:39 -0500
Re: Hey Odd! Odd Bodkin <bodkinodd@gmail.com> - 2016-01-31 13:25 -0600
Re: Hey Odd! Odd Bodkin <bodkinodd@gmail.com> - 2016-01-30 12:29 -0600
Re: Hey Odd! Fabian Russell <fb@zen.info> - 2016-01-30 20:51 +0000
Re: Hey Odd! benj <none@gmail.com> - 2016-01-31 00:16 -0500
Re: Hey Odd! Fabian Russell <fb@zen.info> - 2016-01-31 05:58 +0000
Re: Hey Odd! Odd Bodkin <bodkinodd@gmail.com> - 2016-01-31 13:29 -0600
Re: Hey Odd! Fabian Russell <fb@zen.info> - 2016-01-30 21:08 +0000
Re: Hey Odd! Odd Bodkin <bodkinodd@gmail.com> - 2016-01-31 13:33 -0600
Re: Hey Odd! Fabian Russell <fb@zen.info> - 2016-01-31 20:20 +0000
Re: Hey Odd! Odd Bodkin <bodkinodd@gmail.com> - 2016-01-31 14:48 -0600
Re: Hey Odd! Fabian Russell <fb@zen.info> - 2016-01-31 21:37 +0000
Re: Hey Odd! Odd Bodkin <bodkinodd@gmail.com> - 2016-01-31 16:00 -0600
Re: Hey Odd! Odd Bodkin <bodkinodd@gmail.com> - 2016-01-31 16:02 -0600
Re: Hey Odd! The Starmaker <starmaker@ix.netcom.com> - 2016-02-01 00:03 -0800
Re: Hey Odd! The Starmaker <starmaker@ix.netcom.com> - 2016-02-01 00:36 -0800
Re: Hey Odd! The Starmaker <starmaker@ix.netcom.com> - 2016-02-01 14:18 -0800
Re: Hey Odd! The Starmaker <starmaker@ix.netcom.com> - 2016-02-01 16:16 -0800
Re: Hey Odd! HVAC <mr.hvac@gmail.com> - 2016-01-29 10:41 -0800
Re: Hey Odd! benj <none@gmail.com> - 2016-01-29 14:22 -0500
Re: Hey Odd! Fabian Russell <fb@zen.info> - 2016-01-29 22:26 +0000
Re: Hey Odd! Odd Bodkin <bodkinodd@gmail.com> - 2016-01-29 16:59 -0600
Re: Hey Odd! Fabian Russell <fb@zen.info> - 2016-01-29 23:45 +0000
Re: Hey Odd! Odd Bodkin <bodkinodd@gmail.com> - 2016-01-31 13:19 -0600
Re: Hey Odd! Mahipal <mahipal7638@gmail.com> - 2016-01-30 14:55 -0800
Re: Hey Odd! Mahipal <mahipal7638@gmail.com> - 2016-01-29 10:55 -0800
Re: Hey Odd! benj <none@gmail.com> - 2016-01-29 13:47 -0500
Re: Hey Odd! Fabian Russell <fb@zen.info> - 2016-01-29 22:36 +0000
Re: Hey Odd! benj <none@gmail.com> - 2016-01-30 03:12 -0500
Re: Hey Odd! Fabian Russell <fb@zen.info> - 2016-01-30 18:49 +0000
Re: Hey Odd! benj <none@gmail.com> - 2016-01-30 23:52 -0500
Re: Hey Odd! Fabian Russell <fb@zen.info> - 2016-01-31 05:47 +0000
Re: Hey Odd! benj <none@gmail.com> - 2016-01-31 02:05 -0500
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