First build with automatic dewarping

[matt]

I understand that my Formulas book (which has lots of charts and non-block text) might be an edge case that's not worth supporting. But it does seem to be presenting some challenges for ST. Here are a few examples of the wonky grids that beta6 is creating with this particular book.

Thanks again for all your efforts with this!!

Matt

[Tulon]

Here are a few examples of the wonky grids that beta6 is creating with this particular book.

I need the source files. Can't do anything without them.

[dtic]

The autodewarping is really impressive. This feels like a "platen killer" in the making. When testing I got wobbling on some output pages. Not as much as in Tulon's example above (in the beta6 post) but enough. In one such case I fed the outputted tif back into Scan Tailor for a second round (including dewarping) and that removed the wobble and straightened things out!

[matt]

Here are a few examples of the wonky grids that beta6 is creating with this particular book.

I need the source files. Can't do anything without them.

I've updated my previous post with copies of the source images. Thanks for looking into it!

[Tulon]

Matt, I think you are getting such poor results because you aren't fixing incorrectly detected content boxes.

Anyway, here comes beta7: http://depositfiles.com/files/f3w0nsol3
This one finds more text lines and chooses a pair of representative lines better.

[matt]

Anyway, here comes beta7: http://depositfiles.com/files/f3w0nsol3
This one finds more text lines and chooses a pair of representative lines better.

Cool, I'm looking forward to trying it out. Are those changes available via git? (As I'm on a Mac I've been following the developments there). The last few changesets I see there are

Code: Select all

~/Applications/scantailor$ git --no-pager log -5 --pretty=oneline --abbrev=1

92d094246ff41ef4ab67ff7762bc34e70c652184 Updated line numbers of German translation's location tags
91e271606c6c02257d43ed7cf165c5999b91a66f added CMakeFiles to .gitignore
cea5e25357305c0c8c3f53d21b01814b9b2c23ed added translations for the OutputChangeDewarpingDialog
5d63a3a8399282708ecb35c06ffa482a46afaacf Set version to 1.0.0beta6



[Tulon]

I forgot to push my commits - just did it now.

[Tulon]

I've got a crash report from beta7 which I can't reproduce. I'll need the source image and probably the project file.

[jimboh]

I just started testing dewarping today, with beta7. The auto function did a good job to the extent it applied itself to the page, but it missed a big chunk of the page.

The source:

The auto:

dewarping.png (392.99 KiB) Viewed 430 times

The output:

See also the attached project file.

[jimboh]

"The extension scantailor is not allowed," so here is a zip file containing the project and other files.

feedback.zip

(736.97 KiB) Downloaded 50 times

I went back and switched to Mixed mode. As a result, the warped chess diagram was auto-selected perfectly as a Picture Zone. Next, I looked at the Dewarping tab, which was unchanged. Following is an updated zip file containing the updated (i.e. Mixed) project and other files.

temp.zip

(1 MiB) Downloaded 39 times