[Insight-users] Erosion program failing at writer Update.Can anyone help?

[D, Yamini]

Hi,

Thanks for responding. Yes reader->Update() was one thing which I tried, the actual mistake was in the CMakelist, altering it solved the problem.



Thank you

>Hi,

>

>try to add reader->Update() after reader->SetFileName(). Otherwise you don't know whether your image could successfully be read.

>

>Christina Rossmanith

>--

>Dept. of Neurology

>University Medical Center Mannheim

>

>Am 21.08.2012 10:59, schrieb D, Yamini:

>>

>> Hi,

>>

>> I am trying to run a program for erosion, after building the project,

>> I run the same in cmd window. I find its failing at " writer->

>>update();"  line.

>>

>> The following is the code and the error displayed .

>>

>> #include"stdafx.h"

>>

>> #include"itkImage.h"

>> #include"itkImageFileReader.h"

>> #include"itkImageFileWriter.h"

>> #include"itkBinaryErodeImageFilter.h"

>> #include"itkBinaryBallStructuringElement.h"

>> intmain( int argc, char* argv[] )

>> {

>> if( argc < 4 )

>>     {

>>     std::cerr << "Usage: " << std::endl;

>>     std::cerr << argv[0] << " inputImage outputImage radius";

>>     std::cerr << std::endl;

>> return EXIT_FAILURE;

>>     }

>> typedef unsigned char PixelType;

>> const unsigned int Dimension = 2;

>> typedef itk::Image< PixelType, Dimension >    ImageType;

>> typedef itk::ImageFileReader< ImageType >     ReaderType;

>> ReaderType::Pointer reader = ReaderType::New();

>> reader->SetFileName( argv[1] );

>> std::cout<<"reader passed"<<std::endl;

>> typedef itk::BinaryBallStructuringElement< PixelType, Dimension >

>> StructuringElementType;

>> StructuringElementType structuringElement;

>> structuringElement.SetRadius( atoi( argv[3] ) );

>> structuringElement.CreateStructuringElement();

>> typedef itk::BinaryErodeImageFilter< ImageType, ImageType,

>> StructuringElementType > BinaryErodeImageFilterType;

>> BinaryErodeImageFilterType::Pointer dilateFilter =

>> BinaryErodeImageFilterType::New();

>> dilateFilter->SetInput( reader->GetOutput() );

>> dilateFilter->SetKernel( structuringElement );

>> std::cout<<"filter passed"<<std::endl;

>> typedef itk::ImageFileWriter< ImageType > WriterType;

>> WriterType::Pointer writer = WriterType::New();

>> writer->SetInput( dilateFilter->GetOutput() );

>> writer->SetFileName( argv[2] );

>> std::cout<<"writer passed"<<std::endl;

>> try

>>     {

>> writer->Update();

>> std::cout<<"writer update passed"<<std::endl;

>>     }

>> catch( itk::ExceptionObject )

>>     {

>>     std::cerr << "Error: " << std::endl;

>> return EXIT_FAILURE;

>>     }

>> return EXIT_SUCCESS;

>> }

>>

>> "C:\Users\Documents\Visual Studio 2010\Projects\myNew\Debug\Yam.exe"

>> d:\gray.jpg  d:\output.jpg  2

>> reader passed

>> filter passed

>> writer passed

>> Error:

>>

>> Thank you,

>> Yamini.D

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