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 106 matches

by dingodog
01 Oct 2011, 07:57
Forum: Software
Topic: jbig2enc: pdf.py patched for right pdf page size
Replies: 4
Views: 3556

Re: jbig2enc: pdf.py patched for right pdf page size

HU-HO! I spoked too soon! We have a serious problem if we edit images with a program that strip the original dpi info (settling to zero) we have this error: Traceback (most recent call last): File "pdf.py", line 171, in main(sym, pages) File "pdf.py", line 129, in main contents = Obj({}, 'q %f 0 0 %...
by dingodog
30 Sep 2011, 15:23
Forum: Software
Topic: jbig2enc: pdf.py patched for right pdf page size
Replies: 4
Views: 3556

jbig2enc: pdf.py patched for right pdf page size

rubypdf posted a patch for pdf.py https://github.com/agl/jbig2enc/issues/15 to generate proper pdf page size from jbig2enc encoded data jbig2 -s -p -v *.ext && pdf.py output>output.pdf I applied patch and successful used the new pdf.py to generate proper page size #!/usr/bin/python import sys impor...
by dingodog
03 Sep 2011, 13:12
Forum: OCR/Optical Character Recognition
Topic: Cuneiform OCR
Replies: 3
Views: 5953

Re: Cuneiform OCR

*Tesseract* and *Cuneiform* for Linux are fully scriptable via command line I built binaries of *Tesseract 3.0* + additional language data in one file (213 MB) - http://dokupuppylinux.tk/programs:ocr#tesseract-30 for Puppy Linux 3.01 , 4.3.1 , 5.2.5 and *Cuneiform* - http://dokupuppylinux.tk/progra...
by dingodog
02 Aug 2011, 15:27
Forum: R&D and New Technologies
Topic: Spectacular Google Books failure
Replies: 3
Views: 5156

Re: Spectacular Google Books failure

googlebooks scanning technique is awesome!!! (and it is free for libraries, while other *supposed* *specialists* ask for money and make a work many times worst than google) unfortunately managements of *public domain books* is not at same level (public domain book left for years in snippet view... a...
by dingodog
01 Jul 2011, 16:57
Forum: Software
Topic: pdf container for jpeg 2000 images?
Replies: 8
Views: 21736

Re: pdf container for jpeg 2000 images?

Perhaps Ghostscript can process the files for you? Chris I read somewhere that ghostscript can ONLY READ jpeg 2000 from PDF, not WRITE JP2 in pdf it seems that jpeg 2000 specs for pdf are patented and developers need to buy a licence to implement this encoder for pdf applications. This can explain ...
by dingodog
30 Jun 2011, 19:39
Forum: Software
Topic: pdf container for jpeg 2000 images?
Replies: 8
Views: 21736

Re: pdf container for jpeg 2000 images?

I forget to write that I already tried imagemagick also adding the -compress JPEG2000 switch, but the result was the same (I have the jpeg 2000 delegates) Regarding Graphicsmagick, I think the online man is a bit outdated or incomplete, since it supports jpeg 2000 (I compiled statically against libj...
by dingodog
30 Jun 2011, 17:23
Forum: Software
Topic: pdf container for jpeg 2000 images?
Replies: 8
Views: 21736

pdf container for jpeg 2000 images?

I have a set of JPEG 2000 images (.jp2) and I want insert all these jp2 images in a multipage pdf the problem is that when I convert any single jp2 image to pdf (using graphicsmagick and then pdftk to join in a single multipage pdf) for f in *.jp2: do gm convert $f $f.pdf;done && pdftk *.pdf cat out...
by dingodog
23 Apr 2011, 14:07
Forum: Software
Topic: What is the most efficient procedure to generate BW images?
Replies: 3
Views: 1983

Re: What is the most efficient procedure to generate BW imag

a specific utility for optimize conversion of colorful images in B/W is optimize2bw - http://www.exactcode.de/site/open_source/exactimage/utilities/ optimize2bw : Reads shaded, color or gray image files and does perform automatic thresholding and optional scaling on the data. It is useful for long t...
by dingodog
08 Apr 2011, 17:15
Forum: Software
Topic: openSUSE packages
Replies: 26
Views: 21828

Re: openSUSE packages

New package for openSUSE users — DiffPDF http://software.opensuse.org/search?q=DiffPDF&include_home=true&exclude_debug=true very useful since I run Puppy Linux and developing environment is frugal (I had problems in compiling qt apps), are you interested in making STATIC version so app can run on...