[vtkusers] vtkImageViewer --> SetColorWindow , SetColorLevel

[Mathieu Malaterre]

> Hi Serhat,
> 
> With the SetColorWindow and SetColorLevel methods you can perform a gray
> scale transformation. See attach (windowlevel.jpg) for a figure that shows
> the significance of window and level. If you read in medical images in DICOM
> format, the window and level configuration of the original image are
> mentioned in the DICOM header (tags (0028,1050) and (0028,1051) ).



DICOM does not always specify those fields. In that case you can easily compute some nice values using:

GetScalarRange(min, max)
SetColorWindow(max - min )
SetColorLevel((max+min)/2)

HTH
Mathieu
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