File: TestIslandRemoval2D.tcl

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vtk 5.0.2-4
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package require vtk

# A script to test the island removal filter.
# first the image is thresholded, then small islands are removed.


# Image pipeline

vtkPNGReader reader
reader SetFileName "$VTK_DATA_ROOT/Data/fullhead15.png"

vtkImageThreshold thresh
thresh SetInputConnection [reader GetOutputPort]
thresh ThresholdByUpper 2000.0
thresh SetInValue 255
thresh SetOutValue 0
thresh ReleaseDataFlagOff

vtkImageIslandRemoval2D island
island SetInputConnection [thresh GetOutputPort]
island SetIslandValue 255
island SetReplaceValue 128
island SetAreaThreshold 100
island SquareNeighborhoodOn

vtkImageViewer viewer
viewer SetInputConnection [island GetOutputPort]
viewer SetColorWindow 255
viewer SetColorLevel 127.5
#viewer DebugOn

viewer Render