David Clunie

Agree "arrows" should be single point.

Glad to see there may be progress on this. Since I last commented, I drafted this paper on DICOM SR for communicating planar annotations, though I haven't looked at it...

FYI, the DICOM coordinate systems and orientations may be relevant when something is patient-relative. The co-ordinate system is used when the origin of an image TLHC and the unit vectors...

I have no objections. The [final text of CP 2204](https://dicom.nema.org/medical/dicom/Final/cp2204_ft_SinglePartBulkData.pdf) which amended the [section describing the Media Types](https://dicom.nema.org/medical/dicom/current/output/chtml/part18/sect_10.4.4.html), including those for the Bulk Data Resources, should now make it clear...

Interesting - not sure why there is a 0.002 % difference between the pixel spacing values in the first place - I will look into this. That said, it might...

Perhaps a percentage rather than an absolute value might be better

I completely agree, and I will look into why it is occurring. Practical experience with radiology 3D data over the years suggests though that having too small an epsilon causes...

Since we don't actually know what the problem is, we don't know what J2K bitstream metadata we need - I suggest you hold off until we find a signature for...

@issakomi I have asked @malaterre to reopen and implement the referenced [PR](https://github.com/malaterre/GDCM/pull/158), and uploaded to the [PR](https://github.com/malaterre/GDCM/pull/158) a copy of a proposed DICOM CP specifying the behavior.

Since @malaterre has decided not to be helpful, we will need to work around his recalcitrance in ITK as he suggests.