Multi-Frame Images

[Alexander Fedotov]

Which is the best and the fastest way to work with
multi-frame images?

I use DcmFileFormat::loadFile() and
DcmFileFormat::getDataset() methods.

Then I create a new DicomImage(a_pDataset, EXS_Unknown, CIF_MayDetachPixelData) and call
DicomImage::createWindowsDIB()
with the current frame number to play the image.

But it works slow

Best regards,
Alexander.

[Jörg Riesmeier]

What is slow: the creation of the DicomImage instance or the call of createWindowsDIB()?

[Alexander Fedotov]

[quote="Jörg Riesmeier"]What is slow: the creation of the DicomImage instance or the call of createWindowsDIB()?[/quote]

The creation of the DicomImage instance is slow too,
but it is not critical for small multi-frame images
and because it (creation) is done once.

The slow work of createWindowsDIB is critical.
I use the same scheme for playing different one-frame images (files)
and for playing multi-frame images.

In first case it works fine.

Regards,
Alexander.

[Alexander Fedotov]

Hello All!

I have investigated the problem thoroughly.
The main problem was in swapping when the multi-frame image is scaling, rotating etc.

So this topic can be closed and deleted.

By the way, a lot of DICOM Viewers have problems with
multi-frame images

Best Regards,
Alexander.