private static void ProcessOverlays(DicomDataset input, DicomDataset output)
{
var overlays = DicomOverlayData.FromDataset(input.InternalTransferSyntax.IsEncapsulated ? output : input);
foreach (var overlay in overlays)
{
var dataTag = new DicomTag(overlay.Group, DicomTag.OverlayData.Element);
// Don't run conversion on non-embedded overlays.
if (output.Contains(dataTag))
{
continue;
}
// If embedded overlay, Overlay Bits Allocated should equal Bits Allocated (#110).
var bitsAlloc = output.Get(DicomTag.BitsAllocated, (ushort)0);
output.AddOrUpdate(new DicomTag(overlay.Group, DicomTag.OverlayBitsAllocated.Element), bitsAlloc);
var data = overlay.Data;
if (output.InternalTransferSyntax.IsExplicitVR)
{
output.AddOrUpdate(new DicomOtherByte(dataTag, data));
}
else
{
output.AddOrUpdate(new DicomOtherWord(dataTag, data));
}
}
}
private static void ProcessOverlays(DicomDataset input, DicomDataset output)
{
var overlays = DicomOverlayData.FromDataset(input);
foreach (var overlay in overlays)
{
var dataTag = new DicomTag(overlay.Group, DicomTag.OverlayData.Element);
// don't run conversion on non-embedded overlays
if (output.Contains(dataTag))
{
continue;
}
output.Add(new DicomTag(overlay.Group, DicomTag.OverlayBitsAllocated.Element), (ushort)1);
output.Add(new DicomTag(overlay.Group, DicomTag.OverlayBitPosition.Element), (ushort)0);
var data = overlay.Data;
if (output.InternalTransferSyntax.IsExplicitVR)
{
output.Add(new DicomOtherByte(dataTag, data));
}
else
{
output.Add(new DicomOtherWord(dataTag, data));
}
}
}