Re: [Gdcm2] DataElement.GetByteValue returning NULL

[Mathieu M. <mat...@gm...>]

On Fri, Sep 5, 2014 at 3:18 PM, KB <bul...@gm...> wrote:
> We have been using something like the following code snippet as part of an
> application, and have read several thousand images without issue.  Today
> however, we came across an image for which GDCM returns NULL for
> de.GetByteValue().  We are trying to understand why?  The image appears to
> be OK, we don’t have any issue viewing it in other image viewers.  Any
> recommendation on how to proceed?  Thanks
[...]
>                 const gdcm::DataElement& de = mergedImage->GetDataElement();
>
>                 const gdcm::ByteValue *bv = de.GetByteValue();

This only works for uncompressed DICOM file, none of the encapsulated
will work in that code (eg. JPEG, JPEG-LS, RLE...). You should really
use the gdcm::ImageReader / GetBuffer API instead.

2cts