[Insight-users] I have the problem in executing the dilation code , can any one help ?

[Bradley Lowekamp]

This is the prototypical example of a basic CMake project for using ITK:

https://github.com/Kitware/ITK/blob/master/Examples/Installation/CMakeLists.txt

What does your CMake code look like?


I am suspicion that the code generated by CMake to automatically register the IO factories did not occur. There should be a directory called "ITKIOFactoryRegistration" created in your build tree. This directory should contain a couple of header files.

Dave could also be correct if you didn't build ITK with all the modules turned on. 

You could also try manually setting the ImageIO for the writer to  itk::JPEGImageIO, simularly to was was done here:

http://www.vtk.org/Wiki/ITK/Examples/IO/TIFFImageIO

Hope this helps,
Brad

On Aug 17, 2012, at 8:28 AM, Raviteja, Allaparthi wrote:

> Hi,
>  
> Ya, I am using “cmake”.
>  
>  
> Regards,
> Ravi Teja.
>  
>  
> From: Bradley Lowekamp [mailto:blowekamp at mail.nih.gov] 
> Sent: Friday, August 17, 2012 5:52 PM
> To: Raviteja, Allaparthi
> Cc: insight-users at itk.org
> Subject: Re: [Insight-users] I have the problem in executing the dilation code , can any one help ?
>  
> Hello,
>  
> It sounds like the ImageIO factories are not getting registered automatically.
>  
> Are you using CMake?
>  
> Brad
>  
> On Aug 17, 2012, at 4:56 AM, Raviteja, Allaparthi wrote:
> 
> 
> Hi,
>  
> I get the following errors when I try to run the following code in command window
>  
>  
>  
> #include "stdafx.h"
>  
> #include "itkImage.h"
> #include "itkImageFileReader.h"
> #include "itkImageFileWriter.h"
> #include "itkBinaryBallStructuringElement.h"
> #include "itkBinaryDilateImageFilter.h"
>  
> int main(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] );
>  
>   typedef itk::BinaryBallStructuringElement< PixelType, Dimension > StructuringElementType;
>   StructuringElementType structuringElement;
>   structuringElement.SetRadius( atoi( argv[3] ) );
>   structuringElement.CreateStructuringElement();
>  
>   typedef itk::BinaryDilateImageFilter< ImageType, ImageType, StructuringElementType > BinaryDilateImageFilterType;
>  
>   BinaryDilateImageFilterType::Pointer dilateFilter = BinaryDilateImageFilterType::New();
>   dilateFilter->SetInput( reader->GetOutput() );
>   dilateFilter->SetKernel( structuringElement );
>  
>   typedef itk::ImageFileWriter< ImageType > WriterType;
>   WriterType::Pointer writer = WriterType::New();
>   writer->SetInput( dilateFilter->GetOutput() );
>   writer->SetFileName( argv[2] );
>  
>   try
>     {
>     writer->Update();
>     }
>   catch( itk::ExceptionObject & e )
>     {
>     std::cerr << "Error: " << e << std::endl;
>     return EXIT_FAILURE;
>     }
>  
>   return EXIT_SUCCESS;
> }
>  
>  
>  
>  
>  
> Error:
> itk::ImageFileWriterException (0046ED04)
> Location: "void __thiscall itk::ImageFileWriter<class itk::Image<unsigned char,2> >::Write(void)"
> File: d:\itk\insighttoolkit-4.1.0\modules\io\imagebase\include\itkimagefilewriter.hxx
> Line: 152
> Description:  Could not create IO object for file D:\dilatedoutput.jpg
>   Tried to create one of the following:
>   You probably failed to set a file suffix, or
>     set the suffix to an unsupported type.
>  
>  
>  
> I am using InsightToolkit-4.1.0 with Visual Studio 2010 on Windows 7. How do I resolve these errors?
>  
>  
> Thank you.
>  
>  
> Regards,
> Ravi Teja
>  
>  
>  
>  
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>  
> ========================================================
> Bradley Lowekamp  
> Medical Science and Computing for
> Office of High Performance Computing and Communications
> National Library of Medicine 
> blowekamp at mail.nih.gov
> 
> 
>  
>  

========================================================
Bradley Lowekamp  
Medical Science and Computing for
Office of High Performance Computing and Communications
National Library of Medicine 
blowekamp at mail.nih.gov



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