scantailor/scantailor — pull request #111 by svpv (2014-09-24 20:59:16+00:00)
Title: Enbale hirzontal predictor in TiffWriter

This typically reduces the size of RGB images by a factor of 2 to 3!
E.g. a 600dpi page goes down from 74M to 24M. Grayscale pages are
typically reduced by 30%. However, this predictor is not applicable
to monochrome images.