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package require vtk
# Image pipeline
vtkImageReader reader
reader ReleaseDataFlagOff
reader SetDataByteOrderToLittleEndian
reader SetDataExtent 0 63 0 63 1 93
reader SetFilePrefix "${VTK_DATA_ROOT}/Data/headsq/quarter"
reader SetDataMask 0x7fff
vtkImageMagnify mag
mag SetInputConnection [reader GetOutputPort]
mag SetMagnificationFactors 4 4 1
vtkImageThreshold th
th SetInputConnection [mag GetOutputPort]
th SetReplaceIn 1
th SetReplaceOut 1
th ThresholdBetween -1000 1000
th SetOutValue 0
th SetInValue 2000
vtkImageCast cast
cast SetInputConnection [mag GetOutputPort]
cast SetOutputScalarTypeToFloat
vtkImageCast cast2
cast2 SetInputConnection [th GetOutputPort]
cast2 SetOutputScalarTypeToFloat
vtkImageWeightedSum sum
sum AddInputConnection [cast GetOutputPort]
sum AddInputConnection [cast2 GetOutputPort]
sum SetWeight 0 10
sum SetWeight 1 4
vtkImageViewer viewer
viewer SetInputConnection [sum GetOutputPort]
viewer SetZSlice 22
viewer SetColorWindow 1819
viewer SetColorLevel 939
sum SetWeight 0 1
#make interface
viewer Render
wm withdraw .
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