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#!/usr/bin/env python
## Program: VMTK
## Module: $RCSfile: vmtkimagefeaturecorrection.py,v $
## Language: Python
## Date: $Date: 2006/07/17 09:53:14 $
## Version: $Revision: 1.8 $
## Copyright (c) Luca Antiga, David Steinman. All rights reserved.
## See LICENCE file for details.
## This software is distributed WITHOUT ANY WARRANTY; without even
## the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
## PURPOSE. See the above copyright notices for more information.
import vtk
import sys
import pypes
import vtkvmtk
vmtkimagefeaturecorrection = 'vmtkImageFeatureCorrection'
class vmtkImageFeatureCorrection(pypes.pypeScript):
def __init__(self):
pypes.pypeScript.__init__(self)
self.Image = None
self.LevelSets = None
self.Sigma = 1.0
self.ScaleValue = 0.02
self.NegateLevelSets = False
self.ComputeScaleValueFromInput = True
self.SetScriptName('vmtkimagefeaturecorrection')
self.SetScriptDoc('correct a feature image (e.g. remove influence of bone and/or air from CT-based feature images)')
self.SetInputMembers([
['Image','i','vtkImageData',1,'','the input feature image','vmtkimagereader'],
['LevelSets','levelsets','vtkImageData',1,'','the input level sets','vmtkimagereader'],
['Sigma','sigma','float',1,'(0.0,)'],
['ScaleValue','scale','float',1,'(0.0,)'],
['ComputeScaleValueFromInput','scalefrominput','bool',1,''],
['NegateLevelSets','negate','bool',1,'']
])
self.SetOutputMembers([
['Image','o','vtkImageData',1,'','the output image','vmtkimagewriter']
])
def Execute(self):
if self.Image == None:
self.PrintError('Error: No input image.')
if self.LevelSets == None:
self.PrintError('Error: No input level sets.')
if self.NegateLevelSets:
negateFilter = vtk.vtkImageMathematics()
negateFilter.SetInput(self.LevelSets)
negateFilter.SetOperationToMultiplyByK()
negateFilter.SetConstantK(-1.0)
negateFilter.Update()
self.LevelSets = negateFilter.GetOutput()
sigmoid = vtkvmtk.vtkvmtkLevelSetSigmoidFilter()
sigmoid.SetInput(self.Image)
sigmoid.SetLevelSetsImage(self.LevelSets)
sigmoid.SetSigma(self.Sigma)
sigmoid.SetScaleValue(self.ScaleValue)
if self.ComputeScaleValueFromInput:
sigmoid.ComputeScaleValueFromInputOn()
else:
sigmoid.ComputeScaleValueFromInputOff()
sigmoid.Update()
self.Image = sigmoid.GetOutput()
if __name__=='__main__':
main = pypes.pypeMain()
main.Arguments = sys.argv
main.Execute()
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