Hi, I have a 3D volume (vtkImage) which I show through 3 orthogonal vtkImagePlaneWidgets. How can I add brightness and contrast control to this widget ? Regards, Somi -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20100430/1b85aa4a/attachment.htm>