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Removing unwanted grey values in scanning white papers

When doing automated scanning, like I do to for properly organizing paper administration, the resulting images can get quite large because the background has near-white information that is still very complex to save. Imagemagick has nice solution for that; -white-threshold x%. It also has -black-threshold, should it be necessary.


3 Comments ( Add comment / trackback )

  1. (permalink)
    Comment by Rowan Rodrik
    On September 20, 2009 at 13:13

    Been assimilating new paper administration, have you? 😉

  2. (permalink)
    Comment by Rowan Rodrik
    On February 2, 2010 at 14:37

    Have you heard of unpaper yet? It’s a post-processing tool for scanned sheets of paper, especially for book pages that have been scanned from previously created photocopies..

  3. (permalink)
    Comment by halfgaar
    On February 3, 2010 at 20:30

    No, I haven’t heard of that. Maybe it’s worth checking out…