[Insight-developers] PROPOSAL FOR IMAGEIO: class to get image attributes before reading image

[Williams, Norman K]

Is there a way to do this I'm missing? There are times when it's important
to know the ITK pixel type and ImageDimension before reading an image
file.  In particular, I'm writing a reader to be called from Matlab, and
it would be good to at least create an image with the same ImageDimension
as the on-disk file.

This would (I guess) call itk::ImageIOFactory::CreateImageIO to get the
appropriate ImageIO object, then set the filename and call
itk::ImageIOFactory::ReadImageInformation.  This would work except for
multi-file images like DICOM -- the fly in everyone's ImageIO ointment.

I know how to do this; the question is where should it live? Should it be
a method of itkImageFileReader? Or its own thing?





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