[Insight-users] Get the number of components per pixel without reading image

[David Doria]

Without reading the image, it is possible to determine some
information about the image:

e.g. the number of dimensions:

  itk::ImageIOBase::Pointer imageIO =
        itk::ImageIOFactory::CreateImageIO(
            filename.c_str(), itk::ImageIOFactory::ReadMode);
  return imageIO->GetNumberOfDimensions();

I want to determine the number of components per pixel in the same
manner (i.e. a normal RGB image would return 3). Is that possible? I
didn't see any function name in ImageIOBase that indicated such a
functionality.

Thanks,

David