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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…