[Insight-users] IO object creation error

[rg32@njit.edu]

Hi all ,
Could anyone help me with the run time error .
ExceptionObject caught !
itk::ImageFileReaderException (00EFFB84)
Too many errors encountered; the rest of the message is ignored:
Location: "Unknown"
File: C:\Documents and Settings\rashmi\Desktop\downloads\In
de\IO\itkImageFileReader.txx
Line: 101
Description:  Could not create IO object for file bar1.png
 
> > ===========================
> > 
> > 
> > void SubtractFilter(char * arg1 , char * arg2 ,char * arg3)
> > {
> >  
> >   typedef unsigned char    CharPixelType;  //IO
> >   typedef float  RealPixelType;  //Operations
> > 
> >   const    unsigned int    Dimension = 3;
> > 
> >   typedef itk::Image<CharPixelType, Dimension>   CharImageType;
> >   typedef itk::Image<RealPixelType, Dimension>   RealImageType;
> >   
> >   typedef itk::ImageFileReader< RealImageType >  ReaderType;
> >   typedef itk::ImageFileReader< RealImageType >  ReaderTypeSecond;
> >   
> >   typedef itk::ImageFileWriter< RealImageType >  WriterType;
> > 
> >   typedef itk::SubtractImageFilter<RealImageType , 
> > RealImageType ,RealImageType> SubtractImageFilterType;
> >  
> >    //Setting the IO
> >   ReaderType::Pointer reader = ReaderType::New();
> >   ReaderTypeSecond::Pointer readerSecond = ReaderTypeSecond::New();
> >   WriterType::Pointer writer = WriterType::New();	
> >   
> >   //Setting the ITK pipeline filter
> >   
> >   SubtractImageFilterType::Pointer SubtractImageFilterPtr = 
> > SubtractImageFilterType::New();
> >   
> >   reader->SetFileName( arg1  );
> >   readerSecond->SetFileName( arg2  );
> >   writer->SetFileName( arg3 );
> >   
> > 
> >   SubtractImageFilterPtr->SetInput1(reader->GetOutput() );
> >   SubtractImageFilterPtr->SetInput2(readerSecond->GetOutput() );
> > 
> >   try
> >     {
> >     SubtractImageFilterPtr->Update();
> >     }
> >   catch( itk::ExceptionObject & err )
> >     { 
> >     std::cout << "ExceptionObject caught !" << std::endl; 
> >     std::cout << err << std::endl; 
> >     
> >     } 
> > 
> >   writer->SetInput(SubtractImageFilterPtr->GetOutput() );
> >   writer->Update();
> > 
> > }
> > int main( int argc, char * argv[] )
> > {
> >   if( argc < 5 ) 
> >     { 
> >     std::cerr << "Usage: " << std::endl;
> >     std::cerr << argv[0] << "  inputImageFile  outputImageFile 
> variance  
> > maxKernelWidth outputImageFile2" << std::endl;
> >     return 1;
> >     }
> > 
> >   SubtractFilter(argv[1],argv[2],argv[5]);
> >  
> >   return 0;
> > }
> > 
> > 
>