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70 lines
2.3 KiB
70 lines
2.3 KiB
2 years ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkImageSkeleton2D.h,v $
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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// .NAME vtkImageSkeleton2D - Skeleton of 2D images.
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// .SECTION Description
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// vtkImageSkeleton2D should leave only single pixel width lines
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// of non-zero-valued pixels (values of 1 are not allowed).
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// It works by erosion on a 3x3 neighborhood with special rules.
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// The number of iterations determines how far the filter can erode.
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// There are three pruning levels:
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// prune == 0 will leave traces on all angles...
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// prune == 1 will not leave traces on 135 degree angles, but will on 90.
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// prune == 2 does not leave traces on any angles leaving only closed loops.
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// Prune defaults to zero. The output scalar type is the same as the input.
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#ifndef __vtkImageSkeleton2D_h
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#define __vtkImageSkeleton2D_h
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#include "vtkImageIterateFilter.h"
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class VTK_IMAGING_EXPORT vtkImageSkeleton2D : public vtkImageIterateFilter
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{
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public:
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static vtkImageSkeleton2D *New();
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vtkTypeRevisionMacro(vtkImageSkeleton2D,vtkImageIterateFilter);
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void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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// When prune is on, only closed loops are left unchanged.
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vtkSetMacro(Prune,int);
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vtkGetMacro(Prune,int);
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vtkBooleanMacro(Prune,int);
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// Description:
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// Sets the number of cycles in the erosion.
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void SetNumberOfIterations(int num);
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protected:
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vtkImageSkeleton2D();
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~vtkImageSkeleton2D() {};
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int Prune;
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virtual int IterativeRequestUpdateExtent(vtkInformation* in,
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vtkInformation* out);
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void ThreadedExecute(vtkImageData *inData, vtkImageData *outData,
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int outExt[6], int id);
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private:
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vtkImageSkeleton2D(const vtkImageSkeleton2D&); // Not implemented.
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void operator=(const vtkImageSkeleton2D&); // Not implemented.
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};
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#endif
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