If you use gimp there was a plugin written in 2008 called 'deskew'.
I got it running on my SLACKWARE 13.37 system and it is QUICK and ACCURATE.
Here is a before:
And AFTER: The canvas is showing through on the corners... and this was about 3 seconds of processing on a grayscale TIFF image
GIMP can be set up to batch the files and run without interaction
GIMP and DESKEW... wow
Moderator: peterZ
GIMP and DESKEW... wow
Last edited by pfarber on 06 Jan 2012, 12:35, edited 2 times in total.
Re: GIMP and DESKEW... wow
Can't edit posts?
Ignore the MIDDLE image... the first and last ones show the before and after.
Ignore the MIDDLE image... the first and last ones show the before and after.
- daniel_reetz
- Posts: 2812
- Joined: 03 Jun 2009, 13:56
- E-book readers owned: Used to have a PRS-500
- Number of books owned: 600
- Country: United States
- Contact:
Re: GIMP and DESKEW... wow
try editing your post now... we've been trying different settings but having no luck.
Re: GIMP and DESKEW... wow
The only option I have is 'Report' and 'Quote' at the top.
If you are having permission problems log in an administrator, go to the ACP, select the Permissions tab, then the Permissions Mask in the lower right. That will show you what permissions are available, and how they are inherited by user, group, forum etc.
You'll figure it out once you punch in a couple different items.
Helped me a lot to figure out what was blocking an attribute that I set, yet did not 'work'.
If you are having permission problems log in an administrator, go to the ACP, select the Permissions tab, then the Permissions Mask in the lower right. That will show you what permissions are available, and how they are inherited by user, group, forum etc.
You'll figure it out once you punch in a couple different items.
Helped me a lot to figure out what was blocking an attribute that I set, yet did not 'work'.
- daniel_reetz
- Posts: 2812
- Joined: 03 Jun 2009, 13:56
- E-book readers owned: Used to have a PRS-500
- Number of books owned: 600
- Country: United States
- Contact:
Re: GIMP and DESKEW... wow
grr, yet another PHPBB crazy-deep menu. But that was really helpful, thanks! I think you should have an edit button now.
As long as you're helping me out in this capacity, do you have any ideas on improving our forum search? I'd like to just replace the search box with a custom Google Search, but my attempts so far have been pretty crappy.
As long as you're helping me out in this capacity, do you have any ideas on improving our forum search? I'd like to just replace the search box with a custom Google Search, but my attempts so far have been pretty crappy.
Re: GIMP and DESKEW... wow
phpBB3 search is a basic text search... so yeah, its kinda poor.
Only advice I can offer is to use the google site: search, but I don't know if there is a direct plugin for phpbb3
But from google if you enter:
site:diybookscanner.org deskew
It will limit search results to the domain after 'site'.
There is a mod you can do:
http://www.phpbb.com/community/viewtopi ... &t=1344605
Only advice I can offer is to use the google site: search, but I don't know if there is a direct plugin for phpbb3
But from google if you enter:
site:diybookscanner.org deskew
It will limit search results to the domain after 'site'.
There is a mod you can do:
http://www.phpbb.com/community/viewtopi ... &t=1344605
Re: GIMP and DESKEW... wow
pfarber,
I was able to get deskew working for me (works quite well actually - tks !!) - do you know how to run it as a batch process rather than interactively ?
I was able to get deskew working for me (works quite well actually - tks !!) - do you know how to run it as a batch process rather than interactively ?
Re: GIMP and DESKEW... wow
tkr
try http://registry.gimp.org/node/2958
or you may have better luck with imagemagick which also has deskew functions.
try http://registry.gimp.org/node/2958
or you may have better luck with imagemagick which also has deskew functions.