Daniel Reetz, the founder of the DIY Book Scanner community, has recently started making videos of prototyping and shop tips. If you are tinkering with a book scanner (or any other project) in your home shop, these tips will come in handy. https://www.youtube.com/channel/UCn0gq8 ... g_8K1nfInQ

Search found 6 matches

by airwolfke
11 Feb 2015, 10:01
Forum: Tutorials/How-To's
Topic: How big is the size of your book in MB?
Replies: 2
Views: 6067

How big is the size of your book in MB?

can you please tell me how big your scanned book is, after doing the cleanup and OCR.
I'm interested especially in books of about 100 or 1000 pages with just text or mixed

Thanks
by airwolfke
02 Aug 2013, 09:18
Forum: HELP
Topic: Scanned 670 pages --> 73 MB, how can I downsize?
Replies: 10
Views: 5433

Re: Scanned 670 pages --> 73 MB, how can I downsize?

Sorry that hasn't helped but you are processing a large number of pages and 600dpi is quite a high resolution. Have you tried downsampling the images to 300dpi (or maybe 400dpi) and then compressing with CCITT Group 4 or JBIG2 lossless? If you only require the text, and don't need to preserve the p...
by airwolfke
02 Aug 2013, 08:22
Forum: HELP
Topic: Scanned 670 pages --> 73 MB, how can I downsize?
Replies: 10
Views: 5433

Re: Scanned 670 pages --> 73 MB, how can I downsize?

Optimizing the file as JBIG2 (lossless), handle in about the middle, brings me to 92mb, without OCR
by airwolfke
02 Aug 2013, 07:18
Forum: HELP
Topic: Scanned 670 pages --> 73 MB, how can I downsize?
Replies: 10
Views: 5433

Re: Scanned 670 pages --> 73 MB, how can I downsize?

It might be worth trying saving the original images with CCITT Group 4 (fax) compression which at 600dpi should produce good quality black and white text and line illustrations with a reasonable file size. JBIG2 compression, if available, might also be worth trying and could potentially be consider...
by airwolfke
02 Aug 2013, 07:11
Forum: HELP
Topic: Scanned 670 pages --> 73 MB, how can I downsize?
Replies: 10
Views: 5433

Re: Scanned 670 pages --> 73 MB, how can I downsize?

Do you import the scanned images directly to Acrobat? If so, try preprocessing the images in Scan Tailor http://scantailor.sourceforge.net/ and then use Acrobat Clearscan on the tif images that Scan Tailor produces. thank you for your advice, I have scanned the images with PaperPort 14 in PDF forma...
by airwolfke
31 Jul 2013, 14:01
Forum: HELP
Topic: Scanned 670 pages --> 73 MB, how can I downsize?
Replies: 10
Views: 5433

Scanned 670 pages --> 73 MB, how can I downsize?

Hello, I'm new in scanning books and I want to get more into it. I have scanned a bible (about 670pages), in resolution 600DPI, the file size was about 130MB, I did a ClearScan on it to clean the file up and make it OCR readable. The size was brought back to about 73MB. The reason why I took 600DPI ...