[vtkusers] how to brighten an image?

[Marcel van Straten]

> Is there a vtkImage filter that will multiply the pixel values
> by a constant?
You don't need that. You can set the ColorWindow and ColorLevel of the image
lookuptable.

> vtkImageToImageFilter might be the thing to use, but it has no
> documentation, or tcl example.  How does it work?
It's an abstract superclass.

> Does any one have a suggestion on how to brighten up an image?
Read a book about vtk! ;-)

Marcel