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/*=========================================================================
Copyright (c) Kitware, Inc.
All rights reserved.
See Copyright.txt or http://www.kitware.com/VolViewCopyright.htm 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 notice for more information.
=========================================================================*/
/* perform an intensity transformation by computing
the median value of a neighborhood */
#include "vvITKFilterModule.h"
#include "itkBinaryMedianImageFilter.h"
template <class InputPixelType>
class BinaryMedianRunner
{
public:
typedef InputPixelType PixelType;
typedef itk::Image< PixelType, 3 > ImageType;
typedef itk::BinaryMedianImageFilter< ImageType, ImageType > FilterType;
typedef VolView::PlugIn::FilterModule< FilterType > ModuleType;
public:
BinaryMedianRunner() {}
void Execute( vtkVVPluginInfo *info, vtkVVProcessDataStruct *pds )
{
itk::Size< 3 > radius;
radius[0] = atoi( info->GetGUIProperty(info, 0, VVP_GUI_VALUE ) );
radius[1] = atoi( info->GetGUIProperty(info, 1, VVP_GUI_VALUE ) );
radius[2] = atoi( info->GetGUIProperty(info, 2, VVP_GUI_VALUE ) );
ModuleType module;
module.SetPluginInfo( info );
module.SetUpdateMessage("Transforming intensities with a BinaryMedian filter...");
module.GetFilter()->SetRadius( radius );
// Execute the filter
module.ProcessData( pds );
}
};
static int ProcessData(void *inf, vtkVVProcessDataStruct *pds)
{
vtkVVPluginInfo *info = (vtkVVPluginInfo *)inf;
try
{
switch( info->InputVolumeScalarType )
{
case VTK_CHAR:
{
BinaryMedianRunner<signed char> runner;
runner.Execute( info, pds );
break;
}
case VTK_UNSIGNED_CHAR:
{
BinaryMedianRunner<unsigned char> runner;
runner.Execute( info, pds );
break;
}
default:
info->SetProperty( info, VVP_ERROR, "This filter is intended for 8 bits binary images only" );
return -1;
}
}
catch( itk::ExceptionObject & except )
{
info->SetProperty( info, VVP_ERROR, except.what() );
return -1;
}
return 0;
}
static int UpdateGUI(void *inf)
{
char tmp[1024];
vtkVVPluginInfo *info = (vtkVVPluginInfo *)inf;
info->SetGUIProperty(info, 0, VVP_GUI_LABEL, "Radius X");
info->SetGUIProperty(info, 0, VVP_GUI_TYPE, VVP_GUI_SCALE);
info->SetGUIProperty(info, 0, VVP_GUI_DEFAULT, "2");
info->SetGUIProperty(info, 0, VVP_GUI_HELP, "Integer radius along the X axis of the neighborhood used to compute the BinaryMedian. The neighborhood is a rectangular region that extends this number of pixels around the pixel being computed. Setting a radius of 2 will use a neighborhood of size 5.");
info->SetGUIProperty(info, 0, VVP_GUI_HINTS , "1 5 1");
info->SetGUIProperty(info, 1, VVP_GUI_LABEL, "Radius Y");
info->SetGUIProperty(info, 1, VVP_GUI_TYPE, VVP_GUI_SCALE);
info->SetGUIProperty(info, 1, VVP_GUI_DEFAULT, "2");
info->SetGUIProperty(info, 1, VVP_GUI_HELP, "Integer radius along the Y axis of the neighborhood used to compute the BinaryMedian. The neighborhood is a rectangular region that extends this number of pixels around the pixel being computed. Setting a radius of 2 will use a neighborhood of size 5.");
info->SetGUIProperty(info, 1, VVP_GUI_HINTS , "1 5 1");
info->SetGUIProperty(info, 2, VVP_GUI_LABEL, "Radius Z");
info->SetGUIProperty(info, 2, VVP_GUI_TYPE, VVP_GUI_SCALE);
info->SetGUIProperty(info, 2, VVP_GUI_DEFAULT, "2");
info->SetGUIProperty(info, 2, VVP_GUI_HELP, "Integer radius along the Z axis of the neighborhood used to compute the BinaryMedian. The neighborhood is a rectangular region that extends this number of pixels around the pixel being computed. Setting a radius of 2 will use a neighborhood of size 5.");
info->SetGUIProperty(info, 2, VVP_GUI_HINTS , "1 5 1");
const char * text = info->GetGUIProperty(info,2,VVP_GUI_VALUE);
if( text )
{
sprintf(tmp,"%d", atoi( text ) );
info->SetProperty(info, VVP_REQUIRED_Z_OVERLAP, tmp);
}
else
{
info->SetProperty(info, VVP_REQUIRED_Z_OVERLAP, "0");
}
info->OutputVolumeScalarType = info->InputVolumeScalarType;
info->OutputVolumeNumberOfComponents =
info->InputVolumeNumberOfComponents;
memcpy(info->OutputVolumeDimensions,info->InputVolumeDimensions,
3*sizeof(int));
memcpy(info->OutputVolumeSpacing,info->InputVolumeSpacing,
3*sizeof(float));
memcpy(info->OutputVolumeOrigin,info->InputVolumeOrigin,
3*sizeof(float));
// if multi component we have 1 scalar for input and 1 scalar for output
if (info->InputVolumeNumberOfComponents > 1)
{
int sizeReq = 2*info->InputVolumeScalarSize;
char tmps[500];
sprintf(tmps,"%i",sizeReq);
info->SetProperty(info, VVP_PER_VOXEL_MEMORY_REQUIRED, tmps);
}
else
{
// otherwise no memory is required
info->SetProperty(info, VVP_PER_VOXEL_MEMORY_REQUIRED, "0");
}
return 1;
}
extern "C" {
void VV_PLUGIN_EXPORT vvITKBinaryMedianInit(vtkVVPluginInfo *info)
{
vvPluginVersionCheck();
// setup information that never changes
info->ProcessData = ProcessData;
info->UpdateGUI = UpdateGUI;
info->SetProperty(info, VVP_NAME, "Binary Median (ITK)");
info->SetProperty(info, VVP_GROUP, "Noise Suppression");
info->SetProperty(info, VVP_TERSE_DOCUMENTATION,
"Replace each voxel with the median of its neighborhood");
info->SetProperty(info, VVP_FULL_DOCUMENTATION,
"This filter is intended to be used in Binary images ONLY. It applies an a binary median filter to the image. This is equivalent to a voting filter in terms of a Cellular Automata. This filter is commonly used for removing noise from masks resulting from segmentation methods. You may find useful to apply the filter multiple times.");
info->SetProperty(info, VVP_SUPPORTS_IN_PLACE_PROCESSING, "0");
info->SetProperty(info, VVP_SUPPORTS_PROCESSING_PIECES, "1");
info->SetProperty(info, VVP_NUMBER_OF_GUI_ITEMS, "3");
info->SetProperty(info, VVP_REQUIRED_Z_OVERLAP, "0");
info->SetProperty(info, VVP_PER_VOXEL_MEMORY_REQUIRED, "0");
info->SetProperty(info, VVP_REQUIRES_SERIES_INPUT, "0");
info->SetProperty(info, VVP_SUPPORTS_PROCESSING_SERIES_BY_VOLUMES, "0");
info->SetProperty(info, VVP_PRODUCES_OUTPUT_SERIES, "0");
info->SetProperty(info, VVP_PRODUCES_PLOTTING_OUTPUT, "0");
}
}
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