I made a thread on this forum a while back about binarization in photoshop, Gimp and IM:
http://www.diybookscanner.org/forum/vie ... =19&t=2554
but this is not theoretical at all...
Search found 42 matches
- 10 Nov 2014, 01:39
- Forum: R&D and New Technologies
- Topic: Binarization
- Replies: 14
- Views: 30760
- 08 Jul 2014, 20:24
- Forum: Chat
- Topic: Library cataloging software for personal collections?
- Replies: 6
- Views: 19235
Re: Library cataloging software for personal collections?
You could use Calibre. It's an ebook management system but you can add metadata without any file linked to it http://calibre-ebook.com/ It's a very powerful tool, you can do batch updates, import metadata from external sources (for example you input the ISBN and it imports the metadata automatically...
- 22 Jun 2013, 03:53
- Forum: HELP
- Topic: Noob Questions on Scanning Process and E-Reader Formats
- Replies: 14
- Views: 16677
Re: Noob Questions on Scanning Process and E-Reader Formats
Thanks, so you're saying it's possible to have a mix of graphics (i.e. photos, illustrations, charts) alongside text in an EPUB format, but it's just more work? Yes Thanks, I assume the biggest problem for .pdf and DJVU would be keeping the file size down? I wonder how big of a file a 350 page book...
- 21 Jun 2013, 22:40
- Forum: HELP
- Topic: Noob Questions on Scanning Process and E-Reader Formats
- Replies: 14
- Views: 16677
Re: Noob Questions on Scanning Process and E-Reader Formats
1. My main purpose for scanning books is to read my own book collection on a portable e-reader. I don't actually have an e-reader yet but it's mostly down to a choice between an iPad and a Kobo. It will depend on what to expect from the scanning process. My books are mostly academic books with a lo...
- 13 Jun 2013, 06:52
- Forum: Tutorials/How-To's
- Topic: Bitonal conversion using Photoshop (Gimp & Imagemagic...)
- Replies: 41
- Views: 81009
Re: Bitonal conversion using Photoshop (Gimp & Imagemagic...
You are probably right about the display, but I guess it's worth testing. Also, did you try activating the multi-core feature of Gimp? I think it's deactivated by default. You should activate it in the gimprc file and in the Preferences Regarding the DoG in IM, I'm sorry but I don't remember precise...
- 11 Jun 2013, 10:40
- Forum: Tutorials/How-To's
- Topic: Bitonal conversion using Photoshop (Gimp & Imagemagic...)
- Replies: 41
- Views: 81009
Re: Bitonal conversion using Photoshop (Gimp & Imagemagic...
See here on how to use the gimp command line to execute a script:
http://www.gimp.org/tutorials/Basic_Batch/
http://www.gimp.org/tutorials/Basic_Batch/
- 11 Jun 2013, 10:37
- Forum: Tutorials/How-To's
- Topic: Bitonal conversion using Photoshop (Gimp & Imagemagic...)
- Replies: 41
- Views: 81009
Re: Bitonal conversion using Photoshop (Gimp & Imagemagic...
Yes this unique command replicates as much as possible the steps of the Gimp script convert %%1 -colorspace Gray -level 20%%,80%%,.67 ^( +clone -bias 50%% -morphology convolve DoG:1,0,1 -level 0%%,50%%,.45 ^) -compose dissolve -define compose:args=70 -composite -threshold 80%% "%%~ndp1_dog.png&...
- 11 Jun 2013, 06:35
- Forum: Tutorials/How-To's
- Topic: Bitonal conversion using Photoshop (Gimp & Imagemagic...)
- Replies: 41
- Views: 81009
Re: Bitonal conversion using Photoshop (Gimp & Imagemagic...
Hi Benedictus, I agree that the Gimp script is not so fast, but since it's a batch, I personally don't mind the slowness... I just let it run in the background, it's just using one CPU thread anyway As for Imagemagick I proposed some (Windows-based) scripts in the first page of this thread, that do ...
- 25 Jan 2013, 11:12
- Forum: HELP
- Topic: how about handwritten notes?
- Replies: 2
- Views: 4988
Re: how about handwritten notes?
Can you upload some sample pages?
- 17 Jan 2013, 23:37
- Forum: Tutorials/How-To's
- Topic: Bitonal conversion using Photoshop (Gimp & Imagemagic...)
- Replies: 41
- Views: 81009
Re: Bitonal conversion using Photoshop (Gimp & Imagemagic...
Unfortunately a Preview function cannot be implemented with script-fu. I would have to write a real plugin for that, not a simple script
Maybe in the future...
Maybe in the future...