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

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by zamacam
12 Feb 2011, 10:54
Forum: Tutorials/How-To's
Topic: Dekeystoning with a checkerboard
Replies: 80
Views: 88674

Re: Dekeystoning with a checkerboard

rob wrote:Here is the next version of QRPC. It's a minor fix so that those who are using the JAI's accelerated C libraries shouldn't run into any weird class cast issues.
It works fine. Thanks for your so usefull work Rob :-)
by zamacam
12 Feb 2011, 10:40
Forum: Software
Topic: Post process software for Mac ?
Replies: 26
Views: 13792

Re: Post process software for Mac ?

Does such a wishful thinking exist ? Or am I back to square one with my tired and true, but agonizing sllOOOWWWW. ~caelum If you've got the resources, you can use Adobe Lightroom 3, Scan Tailor, and Adobe Acrobat X Pro. I think Adobe Lightroom 3 can be replaced by other software if you don't need t...
by zamacam
12 Feb 2011, 10:23
Forum: Scan Tailor
Topic: Building Scan Tailor on OSX
Replies: 106
Views: 63951

Re: Building Scan Tailor on OSX

Zamacam, how are you downloading the source code? Well, as described in the first post of this thread. I grab the latest sources using the web interface. I download a tarball, uncompress and untar it and then run the traditional build commands. By the way, on Mac OS 10.6 with the latest Qt availabl...
by zamacam
12 Feb 2011, 10:16
Forum: Scan Tailor
Topic: Building Scan Tailor on OSX
Replies: 106
Views: 63951

Re: Building Scan Tailor on OSX

I was unable to build latest sources ... Try now. It works. Thanks :-) I noticed a warning during compilation. I don't know if it's important or not. So, just in case: [...] Scanning dependencies of target deskew [ 52%] Building CXX object filters/deskew/CMakeFiles/deskew.dir/ImageView.cpp.o [ 53%]...
by zamacam
11 Feb 2011, 10:59
Forum: Scan Tailor
Topic: Building Scan Tailor on OSX
Replies: 106
Views: 63951

Re: Building Scan Tailor on OSX

I was unable to build latest sources available on http://scantailor.git.sourceforge.net/git/gitweb.cgi?p=scantailor/scantailor;a=summary This snapshot to be precise: http://scantailor.git.sourceforge.net/git/gitweb.cgi?p=scantailor/scantailor;a=snapshot;h=020d5857d550da94b6990b28c6e484d6c30ad77e;sf=...
by zamacam
03 Feb 2011, 19:21
Forum: Scan Tailor
Topic: First build with automatic dewarping
Replies: 131
Views: 83915

Re: First build with automatic dewarping

Thank you for this interesting answer Tulon. Even if I'm working in a law deparment, I'm working with programers and it is always interesting to understand how the magic works :-) By the way, I had to say that Beta 9 works fine here. The only problem I have was examined here http://diybookscanner.or...
by zamacam
03 Feb 2011, 17:32
Forum: Scan Tailor
Topic: First build with automatic dewarping
Replies: 131
Views: 83915

Re: First build with automatic dewarping

The only thing I could think of was if you delete all but 4 vertices on the grid, you basically get de-keystoning... Right. BTW, you don't even have to delete midpoints - as long as they are on the same line. The control points don't matter by themselves - they only help the user to control the sha...
by zamacam
01 Feb 2011, 17:22
Forum: Tutorials/How-To's
Topic: Dekeystoning with a checkerboard
Replies: 80
Views: 88674

Re: Dekeystoning with a checkerboard

Just for information, qrpc sometime fails to detect a key image. I finally found a possible reason: exposure is too slow. If I modify the supposed white background to pure white, qrpc finds the key image.

I'm attaching two images as example if someone what to do some tests.
by zamacam
19 Jan 2011, 17:17
Forum: Scan Tailor
Topic: First build with automatic dewarping
Replies: 131
Views: 83915

Re: First build with automatic dewarping

I've got a crash using Scantailor 1.0 Beta 8. Here the output available in terminal: imac:~ david$ ./Desktop/scantailor/_scantailor-1.0-beta8/scantailor Floating point exception imac:~ david$ Scantailor was running on Mac OS 10.6.6. I builded it from sources (using up to date macport). It worked nic...
by zamacam
18 Jan 2011, 20:14
Forum: Tutorials/How-To's
Topic: Dekeystoning with a checkerboard
Replies: 80
Views: 88674

Re: Dekeystoning with a checkerboard

Hi Rob, I did some new tests and I'm happy to be able to write that all worked as expected. Thank you very much Rob to have fixed these bugs. I have books with maps and graphics and for the first time, lines on images are perfectly parallels, squares are squared and my maps are displayed as they are...