ImageIO from string/buffer

Engineering
1

I have an NRRD image that is embedded inside another file as a string. Of course I can extract it, write to a file, then use the usual ImageFileReader interface, but that’s wasteful as I already have the object in memory.

I seem to remember an effort a while ago to add IO from a stream to these classes, but cant’ find that now. Any pointers/ideas as to the easiest way to do this? I’m trying to avoid duplicating most of the functionality of NrrdImageIO … perhaps I’m just missing something easy (itk 4.10.x )

2

I also vaguely remember such a discussion, but in my memory the conclusion was that ITK does not provide a mechanism to read an image from memory instead of from disk.

3

Is this the discussion, or was there another one?

4

Ah, here is an even earlier discussion. The answer seems to be to use itkFileFreeImageIO.h

5

Thanks Dženan. I think that second link is the one I was looking for. I’ll dig around in both !