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

Scan Tailor "Experimental"

Scan Tailor specific announcements, releases, workflows, tips, etc. NO FEATURE REQUESTS IN THIS FORUM, please.
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Tulon
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Re: Scan Tailor "Experimental"

Post by Tulon » 22 Jul 2015, 15:01

I couldn't reproduce the latest issues reported by xerum and shinomura. Can you produce a screencast?
Scan Tailor experimental doesn't output 96 DPI images. It's just what your software shows when DPI information is missing. Usually what you get is input DPI times the resolution enhancement factor.

Tulon
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Re: Scan Tailor "Experimental"

Post by Tulon » 22 Jul 2015, 15:05

0kelvin wrote:I see OpenCL now. I've read that Intel i3 sandy bridge supports OpenCL 1.0 through emulation on the cpu.
Trying to use an OpenCL 1.0 device may cause crashes. I guess I'll have to add code to hide OpenCL 1.0 devices from the list. I hoped that would happen automatically.
Scan Tailor experimental doesn't output 96 DPI images. It's just what your software shows when DPI information is missing. Usually what you get is input DPI times the resolution enhancement factor.

0kelvin
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Re: Scan Tailor "Experimental"

Post by 0kelvin » 24 Jul 2015, 13:57

It does crash, I can't use opencl.

shinomura
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Re: Scan Tailor "Experimental"

Post by shinomura » 26 Jul 2015, 07:19

hi Tulon,

if output scanned page with "match size by growing margins" and any alignment, it will ok.
http://i.imgur.com/65sNGi0.png
http://i.imgur.com/LGYbDNG.png

if output scanned page with "match size by scaling" with bottom center, it will create blank page.
http://i.imgur.com/SX95dSg.png
http://i.imgur.com/eGKAcS8.png

but if set margins 2, 26, 23, 28 ... output page will ok.
http://i.imgur.com/8XvWh6i.png
http://i.imgur.com/cHJXBWQ.png


and if working on geometric distortions with curved lines more than 2 pages, save and close project. then open project again the question mark will not disappear :(

Tulon
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Re: Scan Tailor "Experimental"

Post by Tulon » 26 Jul 2015, 07:57

shinomura,

I managed to reproduce your issue. Will fix by the next release.
Scan Tailor experimental doesn't output 96 DPI images. It's just what your software shows when DPI information is missing. Usually what you get is input DPI times the resolution enhancement factor.

Tulon
Posts: 687
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Re: Scan Tailor "Experimental"

Post by Tulon » 28 Jul 2015, 16:11

Here is the new release of ST Experimental: https://github.com/Tulon/scantailor/rel ... 2015_07_28

There weren't many changes since the last release, just a few bug fixes.
Scan Tailor experimental doesn't output 96 DPI images. It's just what your software shows when DPI information is missing. Usually what you get is input DPI times the resolution enhancement factor.

shinomura
Posts: 13
Joined: 15 Jul 2015, 09:46
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Country: Thailand

Re: Scan Tailor "Experimental"

Post by shinomura » 29 Jul 2015, 00:06

thanks Tulon for update, bug in "Match size by scaling" mode gone.
shinomura wrote:...
...
...
and if working on geometric distortions with curved lines more than 2 pages, save and close project. then open project again the question mark will not disappear :(
but I still have this issue
http://i.imgur.com/xt1RSp3.png
http://i.imgur.com/VpldkH9.png

Tulon
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Re: Scan Tailor "Experimental"

Post by Tulon » 29 Jul 2015, 08:07

Shinomura,

Please make screenshots showing one of those pages with question marks on Geometric Distortions and Select Content stages.
Scan Tailor experimental doesn't output 96 DPI images. It's just what your software shows when DPI information is missing. Usually what you get is input DPI times the resolution enhancement factor.


Tulon
Posts: 687
Joined: 03 Oct 2009, 06:13
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Re: Scan Tailor "Experimental"

Post by Tulon » 29 Jul 2015, 17:47

Shinomura,

I still can't reproduce that one. If you can reproduce it on a project with a few pages, upload it somewhere for me to take a look.
Scan Tailor experimental doesn't output 96 DPI images. It's just what your software shows when DPI information is missing. Usually what you get is input DPI times the resolution enhancement factor.

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