[Insight-users] ITK 4.1 ImageIOFactory Could not create IO Object

[Sebastian Losch]

Hm okay, i just created a solution for visual studio using this helloworld
cmake project as basis. The only difference is that there are more Image
types he tried, but it is not working. I did try it with JPEG instead of
PNG, i had to use a castimagefilter in order to use it with the canny
filter which only support real values. No errors, but the output image is
just black.

Some other ideas?

This is the error:

Description:  Could not create IO object for fi
  Tried to create one of the following:
    JPEGImageIO
    GDCMImageIO
    BMPImageIO
    LSMImageIO
    PNGImageIO
    TIFFImageIO
    VTKImageIO
    StimulateImageIO
    BioRadImageIO
    MetaImageIO
    NiftiImageIO
    NrrdImageIO
    GiplImageIO
    HDF5ImageIO
    PNGImageIO
    JPEGImageIO
  You probably failed to set a file suffix, or
    set the suffix to an unsupported type.

2012/5/22 Sebastian Losch <seb.losch at googlemail.com>

> Hi Brad,
>
> thanks for your response. I should have mentioned in my first post that i
> am using Visual Studio 2010 on a Win7 32bit machine. I've read that this
> problem can be solved by adding  include(${ITK_USE_FILE})  to the
> makefile. But what is the corresponding way to do it in visual studio?
>
> Thanks, Sebastian
>
>
> 2012/5/22 Bradley Lowekamp <blowekamp at mail.nih.gov>
>
>> Most likely this is a problem with how you are using CMake for ITK and is
>> not related to the code you have included here.
>>
>> There is an example of what a basic CMake project which uses ITK should
>> like like  int ITK/Examples/Installation/CMakeLists.txt
>>
>>
>> http://itk.org/gitweb?p=ITK.git;a=blob;f=Examples/Installation/CMakeLists.txt;h=5e1b9e7ae0a95430f5162e8ff435b98570c5ad6e;hb=HEAD
>>
>> Hopefully, this will get you started in the right direction to solve you
>> problem.
>>
>> Brad
>>
>>
>> On May 22, 2012, at 4:35 AM, Sebastian Losch wrote:
>>
>> Hi!
>>
>> I am having problems getting the ImageFileReader and ImageFileWriter to
>> work. I just want to read a PNG File, apply a filter and write it back to
>> the harddrive. I found out that there is a problem in 4.1 with the
>> ImageIOFactory registration, so i register the PNGFactory manually. The
>> .png file is in the same folder as the executable. Here is my Code:
>>
>> #include "itkImage.h"
>> #include "itkImageFileReader.h"
>> #include "itkImageFileWriter.h"
>> #include "itkCannyEdgeDetectionImageFilter.h"
>> #include "itkObjectFactoryBase.h"
>> #include "itkPNGImageIOFactory.h"
>>
>> int main(int argc, char *argv[])
>> {
>> itk::ObjectFactoryBase::RegisterFactory(itk::PNGImageIOFactory::New());
>>
>>
>> double variance = 2.0;
>> double upperThreshold = 0.0;
>>  double lowerThreshold = 0.0;
>>
>> typedef itk::Image<double, 2>  DoubleImageType;
>>
>> typedef itk::ImageFileReader<DoubleImageType> ReaderType;
>> ReaderType::Pointer reader = ReaderType::New();
>>  reader->SetFileName("input.png");
>>
>> typedef itk::CannyEdgeDetectionImageFilter <DoubleImageType,
>> DoubleImageType>
>>  CannyEdgeDetectionImageFilterType;
>>
>> CannyEdgeDetectionImageFilterType::Pointer cannyFilter =
>> CannyEdgeDetectionImageFilterType::New();
>>  cannyFilter->SetInput(reader->GetOutput());
>> cannyFilter->SetVariance( variance );
>>  cannyFilter->SetUpperThreshold( upperThreshold );
>> cannyFilter->SetLowerThreshold( lowerThreshold );
>>
>> typedef itk::ImageFileWriter<DoubleImageType> WriterType;
>> WriterType::Pointer writer = WriterType::New();
>>
>> writer->SetFileName("test.png");
>> writer->SetInput(cannyFilter->GetOutput());
>>
>> try {
>> writer->Update();
>> } catch (itk::ExceptionObject &e) {
>>  std::cerr << e << std::endl;
>> }
>>
>> std::cout << "ENDE" << std::endl;
>> }
>>
>> and this is the error:
>>
>> itk::ImageFileReaderException (0059E4A8)
>> Location: "void __thiscall itk::ImageFileReader<class
>> itk::Image<double,2>,class itk::DefaultConvertPixelTraits<double>
>> >::GenerateOutputInformation(void)"
>> File: c:\libs\itk\include\itk-4.1\itkimagefilereader.hxx
>> Line: 143
>> Description:  Could not create IO object for file input.png
>>   Tried to create one of the following:
>>     PNGImageIO
>>   You probably failed to set a file suffix, or
>>     set the suffix to an unsupported type.
>>
>>
>> What am i doing wrong?
>>
>> Thanks in advance, Sebastian
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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
>>
>>
>>
>>
>
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