[ITK] [ITK-users] Get RescaleIntercept

[Matt McCormick]

Hi Matias,

  reader->UpdateOutputInformation();

must be called for gdcmImageIO to parse the tags.

HTH,
Matt


On Mon, Nov 24, 2014 at 7:31 PM, Matias Montroull <matimontg at gmail.com> wrote:
> Hi,
>
> I'm struggling with code I did to get the RescaleIntercept of an image.
>
> It's simple as this:
>
> typedef itk::GDCMImageIO ImageIOTypeGDCM;
> ImageIOTypeGDCM::Pointer gdcmImageIO = ImageIOTypeGDCM::New();
> reader->SetImageIO( gdcmImageIO );
>
> double intercept = gdcmImageIO->GetRescaleIntercept();
> std::cout << "Rescale Intercept value: " << intercept << std::endl;
>
> Now, the last line returns "0" and actually the tag (0028|1052) reads
> "-1000"
>
> Is there any issues with the code or something I missed?
>
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