on 02.04.2012 09:32 Graeme Gill said the following: > Andreas F.X. Siegert wrote: > >> If only the white patch where blown I would understand it, but not only >> the white patch but also the next grey patch is completely (RGB) blown. > > Are you sure that the chart patches were recognised properly ? > (ie. did you check the output of scanin -dipn ?) At least scanin did not complain. But the diag.tif shows the overlay a bit askew (on perfectly level pic of the color chart) cheers afx -- http://afximages.com/