Difference between pages "Digital Images" and "Digital Photography"

From Eugene Eric Kim
(Difference between pages)
(Background whitening wanted.)
 
m (2 revisions imported: Imported from WebFaction on September 13, 2021 with Interwiki prefix Eekim)
 
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== Whiteboard Processing ==
#REDIRECT [[Photography]]
 
=== Techniques ===
 
* [http://matthew.mceachen.us/blog/how-to-clean-up-photos-of-whiteboards-with-gimp-403.html How to clean up photos of whiteboards with Gimp]
* [http://dt.in.th/2008-10-09.extract-whiteboard-in-gimp.html How to extract the drawing from a whiteboard in the GIMP]
 
=== Tools ===
 
[http://beta.rii.ricoh.com/betalabs/content/whiteboard-clean Ricoh Innovations Whiteboard Clean] looks like a great service. Have not experimented with skew control yet. No batching.
 
One of the challenges with this and other scripts is that it focuses on outlines, which means that filled images sometimes get processed out. May want to find a script that does background whitening for these images.
 
[http://snapclean.me/ Snapclean.me] is a similar, email-based service using a Gimp [https://github.com/kyleburton/sandbox/blob/master/gimp/clean-whiteboard-photo.scm script] on the backend.
 
I've used [http://www.fmwconcepts.com/imagemagick/whiteboard/index.php Fred's command-line Imagemagick script] with the following parameters:
 
  -e both -t 30 -s 1
 
Experiment with -t between 20 and 40 for best results. It has limitations, the biggest of which is that you need to have a deeper understanding of the algorithm in order to manipulate the parameters.
 
Other scripts:
 
* Gimp
** [http://registry.gimp.org/node/19822 Whiteboard Clean-Up GIMP plugin]
** [http://keytaps.wordpress.com/2010/03/09/gimp-script-for-cleaning-up-whiteboard-images/ GIMP script for cleaning up whiteboard images]
* [http://www.southwedgesw.com/photonote/ PhotoNote] (Windows; $50)
* [http://www.polyvision.com/tabid/155/objectid/94/default.aspx PolyVision Whiteboard Photo]

Latest revision as of 19:32, 13 September 2021

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