[Insight-users] One of the common Errors-want to know why itoccurs

[alex Dowson]

Hi

in ConnectedComponentImageFilter  image type is different than reader image.  so may be you need to convert reader image to HessianImageType . 


Alex



From: D, Yamini 
Sent: Monday, September 03, 2012 5:58 PM
To: daviddoria at gmail.com 
Cc: insight-users at itk.org 
Subject: Re: [Insight-users] One of the common Errors-want to know why itoccurs

Hi,

I am sending you a part of the code that involves the error. Headers, typedef and the filter parts. Hessian and Connected component are the filters which included. 



#include "stdafx.h"

#include "itkHessianToObjectnessMeasureImageFilter.h"

#include "itkMultiScaleHessianBasedMeasureImageFilter.h"

#include "itkConnectedComponentImageFilter.h"

#include "itkImageFileReader.h"

#include "itkImageFileWriter.h"



typedef float                                 InputPixelType;

  typedef itk::Image<InputPixelType,Dimension>  InputImageType;



  typedef float                                 OutputPixelType;

  typedef itk::Image<OutputPixelType,Dimension> OutputImageType;



  typedef itk::ImageFileReader<InputImageType>  FileReaderType;



  typedef itk::ImageFileWriter<OutputImageType> FileWriterType;



  typedef itk::NumericTraits< InputPixelType >::RealType RealPixelType;



  typedef itk::SymmetricSecondRankTensor< RealPixelType, Dimension > HessianPixelType;

  typedef itk::Image< HessianPixelType, Dimension >                  HessianImageType;



  typedef itk::HessianToObjectnessMeasureImageFilter< HessianImageType,OutputImageType > ObjectnessFilterType;



  typedef itk::MultiScaleHessianBasedMeasureImageFilter< InputImageType,HessianImageType, OutputImageType > MultiScaleEnhancementFilterType;



  // for Connected component

  typedef itk::ConnectedComponentImageFilter< HessianImageType,OutputImageType > ConnectedComponentFilterType;



FileReaderType::Pointer imageReader = FileReaderType::New();

  imageReader->SetFileName(argv[1]);

  try

    {

    imageReader->Update();

    }

  catch (itk::ExceptionObject &ex)

    {

    std::cout << ex << std::endl;

    return EXIT_FAILURE;

    }

.........

........

FileWriterType::Pointer writer2 = FileWriterType::New();

    writer2->SetFileName(argv[9]);

    writer2->UseCompressionOn();

    writer2->SetInput( multiScaleEnhancementFilter->GetOutput() );

........

//CC PART

  FileReaderType::Pointer reader1 = FileReaderType::New();

  reader1->SetFileName(argv[9]);

  cout<<"reader1 passed"<<endl;

  ConnectedComponentFilterType::Pointer CCFilter = ConnectedComponentFilterType::New();

  itk::Image<InputPixelType, Dimension>* pOutputImage = reader1->GetOutput();



  CCFilter->SetInput(pOutputImage);                                                                                  <-------------this is the line where I get the error

  FileWriterType::Pointer writer4 = FileWriterType::New();

  writer4->SetInput(CCFilter->GetOutput());

  writer4->SetFileName("d:\\Final2.mhd");

  cout<<"writer4 passed"<<endl;



return EXIT_SUCCESS;

}





-----Original Message-----
From: David Doria [mailto:daviddoria at gmail.com] 
Sent: Monday, September 03, 2012 5:28 PM
To: D, Yamini
Cc: insight-users at itk.org
Subject: Re: One of the common Errors-want to know why it occurs



On Mon, Sep 3, 2012 at 2:17 AM, D, Yamini <Yamini.D at philips.com> wrote:

> Hi,

> 

> 

> 

> Can you tell me what would be the cause of  the following error ? I 

> have come across this lot of times and want to know why this occurs.

> 

> 

> 

> error C2664: 'void

> itk::ImageToImageFilter<TInputImage,TOutputImage>::SetInput(const

> itk::Image<TPixel,VImageDimension> *)' : cannot convert parameter 1 

> from 'itk::Image<TPixel,VImageDimension> *' to 'const 

> itk::Image<TPixel,VImageDimension> *'



Can you please give this some context? I.e. make a minimal compilable example of where you are calling this function that produces the error you are seeing.



David





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