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Old 03-15-2008, 06:36 AM   #1
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Ripping pbooks - should we have a wiki page?
I've just started ripping pbooks and am making all the usual discoveries. So I'm thinking we should have a wiki section for this, or at least a single page. ideally with a range of topics:
  1. OCR software - links to reviews plus recommendations
  2. using a scanner - tips and tricks
  3. using a camera - tips and tricks
  4. arranging pages and sections when ripping
  5. proof reading tips
  6. output - what format and software to use, how to lay it out

I'm sure there are other things. The one that made my life much easier was deciding to focus on ezarets comment "lighting is critical". I cobbled together a light and diffuser onto my tripod and that hugely increased both accuracy and consistency of the OCR, so the last 200 pages of "Matter" took less time than the previous 100.

Should I just start the wiki page or should we sort things out a bit here first?
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Old 03-15-2008, 04:42 PM   #2
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I've no intention of doing it myself, but just out of interest, now that you're adept at it, how much time are you talking about to "rip" a book?
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Old 03-15-2008, 05:27 PM   #3
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Originally Posted by Halk View Post
I've no intention of doing it myself, but just out of interest, now that you're adept at it, how much time are you talking about to "rip" a book?
For my method (i.e. cutting the spine off & feeding it through my double side scanner with autometic feed & using ABBYY Finereader) it usually takes about 20 minutes to cut & scan. The OCR varies based on the page size & print quality - and to a lesser to the print font. For a typical paperback book about 2 - 3 hours finding and correcting OCR mistakes. They don't all show up with spell checker & I've found some common OCR errors to look for. These can be fixed with a global find/replace.
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Old 03-15-2008, 07:12 PM   #4
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It takes me longer than that to photograph each page, but I still have a perfectly good book afterwards. That matters to me a little, as I can still share the book with friends. I don't know the actual time, the first book is probably a lot slower than future ones. I'll do another one this week I hope and see how I go. I'm guessing about 10 hours all up, but a lot of that time was spent fixing OCR errors when I had the lighting wrong.

The standard errors... definitely. In "Matter" about 80% of the "Sarl" came out "Sari", which might be a dictionary-based fix, but "vou" and "vour" never got dictionary-corrected.

Now that I'm reading the ebook I'm finding even more errors...
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Old 03-15-2008, 10:27 PM   #5
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Now that I'm reading the ebook I'm finding even more errors...
I have to admit that I also find several this way. That's why I'd like my Cybook to be able to highlight a word or phrase for later correction. Often I use my Palm TX just for that purpose.

Also I have used a flatbed scanner when I want to keep the book.

I'm not a wiki-literate person but would like to see a wiki for this activity.
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Old 03-16-2008, 08:59 PM   #6
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https://wiki.mobileread.com/wiki/Digi...ooks_to_Ebooks
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Old 03-18-2008, 06:41 AM   #7
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OK, I just ripped "Pushing Ice" by Alistair Reynolds, and it took ~40 minutes to take 237 page photographs, then about 100 minutes to proof-read the result. I expect to do more proofing as I read it, but that's about 140 minutes for 280 pages, or 2 pages a minute (with two pages per image). I was running Finereader while taking photos, so I could start proofreading almost immediately after I finished taking photos.

New conclusion: a book stand and two cameras might work better, but one camera with a flat sheet of glass does actually work. Lighting seems to be more important than utter flatness.
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