Image with same resolution appear to be sharper in Horos viewer compared OHIF

[kunjesh1]

I have uploaded a head CT scan of the same resolution in Horos and OHIF viewer. The image in Horos viewer appear to be more sharper than OHIF. Any reason why this is happening?

Horos viewer download link : https://files.slack.com/files-pri/T0L2DKJ2Y-F03J5U899FA/download/horos3.3.6.dmg?origin_team=T0L2DKJ2Y

I have attached the screenshots for both.

[kunjesh1]

Attached the CT scan as well routine.zip

[swederik]

If this is v3-stable, then I think it's this: https://github.com/cornerstonejs/cornerstone/issues/84

How does it look on feat/cornerstone3D?

[kunjesh1]

In feat/cornerstone3D it looks like this, Is cornerstone 3D is webGL based ?

[pieper]

The image looks the same on Slicer as it does on OHIF, so I'd say horos is applying a different window/level for some reason.

Slicer reports:

Window/level found in DICOM tags (center=40.0, width=100.0) has been applied to volume 2: ROUTINE HEAD

[sedghi]

@kunjesh1 is this still happening in latest master?

[james-hanks]

@sedghi to investigate latest version and see if decoders need to be updated

[sedghi]

Baseline Osirix

In local drag and drop in OHIF

OHIF through dicom web (orthanc)

So i'm confident this is not an issue on master. Thanks for the initial report though!

[sedghi]

We just release the OHIF 3.8, you can find more details here https://ohif.org/release-notes/3p8/ If you still encounter this issue in 3.8, please re-open this.