package require vtk # Image pipeline vtkImageReader2Factory createReader set reader [createReader CreateImageReader2 "$VTK_DATA_ROOT/Data/beach.jpg"] $reader SetFileName "$VTK_DATA_ROOT/Data/beach.jpg" vtkImageViewer viewer viewer SetInputConnection [$reader GetOutputPort] viewer SetColorWindow 256 viewer SetColorLevel 127.5 #make interface viewer Render $reader UnRegister viewer