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 hatatat
15 Apr 2016, 17:14
Forum: Programs, Software releases, and more.
Topic: Scantailor - How to Get Identically Sized jpgs for Left and Right Side?
Replies: 8
Views: 4704

Re: Scantailor - How to Get Identically Sized jpgs for Left and Right Side?

I handle this by shooting a calibration page for each camera that is a white page with a 2"x2" black square in the center. I then have a preprocessing step that looks at this first page of each set (L/R) and determines what the actual DPI is and scales the pages so that they are the same size. Obvi...
by hatatat
14 Apr 2016, 15:53
Forum: Programs, Software releases, and more.
Topic: Scantailor - How to Get Identically Sized jpgs for Left and Right Side?
Replies: 8
Views: 4704

Re: Scantailor - How to Get Identically Sized jpgs for Left and Right Side?

"Match size by scaling" is meant to preserve the aspect ratio, so it should be fine. I didn't test this feature extensively though, so maybe I got something wrong. Did you actually get wrong results or your concern was theoretical? yes, I get wrong results (with: "Scan Tailor-experimental-2016-02-2...
by hatatat
13 Apr 2016, 16:00
Forum: Programs, Software releases, and more.
Topic: Scantailor - How to Get Identically Sized jpgs for Left and Right Side?
Replies: 8
Views: 4704

Re: Scantailor - How to Get Identically Sized jpgs for Left and Right Side?

Yes, thank you. This is a very good start.

But still I have a small concern.

So, if you have a book where every second page has a header, this does not lead to the desired result... .
by hatatat
12 Apr 2016, 17:31
Forum: Programs, Software releases, and more.
Topic: Scantailor - How to Get Identically Sized jpgs for Left and Right Side?
Replies: 8
Views: 4704

Scantailor - How to Get Identically Sized jpgs for Left and Right Side?

Hi, my workflow is the following: I have two cameras for scanning the book. It can be, that the zoom factor between cameras and also the distance to the scanbed(s) are different. After scanning, I process the left pages and the right pages separately. Namely in Scantaylor, in one Scantaylor project ...
by hatatat
11 Apr 2016, 17:54
Forum: Programs, Software releases, and more.
Topic: BookCrop - batch crop right/left page images
Replies: 33
Views: 31006

Re: BookCrop - batch crop right/left page images

Hi,

so this was my error.

I had a dll "jpeg62.dll" close to BookCrop.ahk, but no "libjpeg-62.dll".

After changing this, it worked well.

Perhaps an error messsage might make sense?

Again: thanks a lot for your very good support!
by hatatat
11 Apr 2016, 01:17
Forum: Programs, Software releases, and more.
Topic: BookCrop - batch crop right/left page images
Replies: 33
Views: 31006

Re: BookCrop - batch crop right/left page images

I have another question :-) When I run now BookCrop against a subdirectory with 71 jpg files (160 MBytes size in total), the BookCrop.ahk_over.png file is created correctly. I select a crop region and press the "crop" button. In my folder, a subdirectory "20160411071246" is created. But unfortunatel...
by hatatat
10 Apr 2016, 17:02
Forum: Programs, Software releases, and more.
Topic: BookCrop - batch crop right/left page images
Replies: 33
Views: 31006

Re: BookCrop - batch crop right/left page images

Yeeeeeees, that was nice teamwork!

Your approach seems to work: the messagebox displays the image dimensions correctly.
by hatatat
10 Apr 2016, 11:45
Forum: Programs, Software releases, and more.
Topic: BookCrop - batch crop right/left page images
Replies: 33
Views: 31006

Re: BookCrop - batch crop right/left page images

Please find attached the values I get on my German computer. As a consequence, I made this: Loop 283 { ; if (objFolder.GetDetailsOf(objFolder.Items, A_Index) = "Width") if (objFolder.GetDetailsOf(objFolder.Items, A_Index) = "Breite") imgw := objFolder.GetDetailsOf(objFolderItem, A_Index) ; if (objFo...
by hatatat
10 Apr 2016, 08:23
Forum: Programs, Software releases, and more.
Topic: BookCrop - batch crop right/left page images
Replies: 33
Views: 31006

Re: BookCrop - batch crop right/left page images

6. My Screen Resolution is: 2560 x 1440
The resolution of BookCrop.exe_over.png is: 1000 x 1440 (as a jpg, I take the screenshot with the vertical line, so coincidentically the hight is identical for both)

7. the message box says:
sh=1310
sw=0
screenheight=1440
screenwidth=2560
by hatatat
10 Apr 2016, 06:38
Forum: Programs, Software releases, and more.
Topic: BookCrop - batch crop right/left page images
Replies: 33
Views: 31006

Re: BookCrop - batch crop right/left page images

Hi, 1. my version of Windows is: Windows 7 Home Premium, Service Pack 1 (Germany located) 2. If I drop a single .jpg file, I still get the thin window 3. If I drop a a folder of jpg files: inside the jpg filder, there is a BookCrop.exe_over.png. It contains the overlaid pictures of the jpgs in the f...