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43 lines
848 B
43 lines
848 B
2 years ago
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package require vtk
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# This script shows the result of an ideal highpass filter in spatial domain
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# Image pipeline
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vtkImageReader2Factory createReader
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set reader [createReader CreateImageReader2 "$VTK_DATA_ROOT/Data/fullhead15.png"]
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$reader SetFileName "$VTK_DATA_ROOT/Data/fullhead15.png"
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vtkImageFFT fft
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fft SetInputConnection [$reader GetOutputPort]
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vtkImageIdealHighPass highPass
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highPass SetInputConnection [fft GetOutputPort]
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highPass SetXCutOff 0.1
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highPass SetYCutOff 0.1
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highPass ReleaseDataFlagOff
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vtkImageRFFT rfft
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rfft SetInputConnection [highPass GetOutputPort]
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vtkImageExtractComponents real
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real SetInputConnection [rfft GetOutputPort]
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real SetComponents 0
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vtkImageViewer viewer
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viewer SetInputConnection [real GetOutputPort]
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viewer SetColorWindow 500
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viewer SetColorLevel 0
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viewer Render
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$reader UnRegister viewer
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