[Insight-users] EncapsulateMetaData problem

[Antoine Leimgruber]

Hi Luis,

Thank you for your answer !

Unfortunately, I have to do it because the spacing tags coming out of  
the imaging modality are incorrect. (Do not be concerned, though, we  
are imaging animals and not patients).

I am not quite sure to understand your statement that ITK will not  
let me do it since I understood that the  
DicomReadChangeHeaderWrite.cxx example demonstrates the manual  
edition of Dicom tags:

   //This example illustrates how to read a single DICOM slice and  
write it back
   //with some changed header information as another DICOM slice.

It puzzles me because edition of tags (0018|1164) and (0028|0030)  
works when I run the code a second time on the output image of the  
first run.

Do you mean that ITK cannot be used for editing Dicom Headers, or are  
you answering the second part of my question about using ITK to erase  
dicom tags ?

Antoine


Le 19 mai 07 à 06:30, Luis Ibanez a écrit :

>
> Hi Antoine,
>
> Are you trying to manually edit the DICOM tag
> describing the image spacing ?
>
> If so,
> ITK will not let you do that.
>
> ITK uses the actual image spacing of the image
> and writes it down in the DICOM tags.
>
>
>
>    Regards,
>
>
>       Luis
>
>
>
> --------------------------
> Antoine Leimgruber wrote:
>> Dear all,
>> I am trying to edit 3 dicoms tags (see section of code at the end  
>> of the message).
>> When I run the code once, the output dicom image has 2 of the 3  
>> tags edited. The tag 0028|0030 remains unchanged.
>> If I run the code again with the previous output image as input,  
>> then the third tag of the new output is also edited.
>> What can I do to avoid running twice my code on each image ?
>> An alternative would be to remove the tag 0018|1164 from the  
>> header. How can I do it ?
>> Thank you for your help
>> Antoine
>> [...]
>> InputImageType::Pointer inputImage = reader->GetOutput();
>> typedef itk::MetaDataDictionary   DictionaryType;
>> DictionaryType & dictionary = inputImage->GetMetaDataDictionary();
>> itk::EncapsulateMetaData<std::string>(dictionary,"0018|1164",  
>> std::string("0.164800\\0.312500"));
>> itk::EncapsulateMetaData<std::string>(dictionary,"0028|0030",  
>> std::string("0.164800\\0.312500"));    
>> itk::EncapsulateMetaData<std::string>(dictionary,"0010|0010",  
>> std::string("y pixel size edited"));
>> typedef itk::ImageFileWriter< InputImageType >  WriterType;
>> WriterType::Pointer writer = WriterType::New();
>>   writer->SetInput( reader->GetOutput() );
>>   writer->SetFileName( argv[2] );
>>   writer->SetImageIO( gdcmImageIO );
>>   try
>>     {
>>     writer->Update();
>> [...]
>> _______________________________________________
>> Insight-users mailing list
>> Insight-users at itk.org
>> http://www.itk.org/mailman/listinfo/insight-users

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