Image and text distortion with Orthanc viewer

Google Groups archive
1

Hi there,
I just for a new Linux instance of Orthanc setup and am test uploading some studies.

I am getting some text and image distortion usually on some of my images (usually the patient demographic image) This is a .dcm image of the demographic page not a structured report.

When I use the “preview this series” the image looks fine, but when viewing in the Orhtan viewer, it looks distorted.

Any ideas on how I can fix this? Maybe something with my configuration?

Thank you,
Kyle

Distorted Image.png

Other images look good.png

Preview series looks good.png

2

This looks like JPEG compression artifacts.

The Orthanc WebViewer uses lossy JPEG compression (with a 95% quality) while the preview button requests a JPEG with a 100% quality. Usually, that should not make a big difference unless your dicom files already contain low quality jpeg.

I would advise you to use the StoneViewer instead of the Orthanc WebViewer which is very basic.

HTH,

Alain.

Other images look good.jpg

Distorted Image.jpg

Preview series looks good.png

3

Hi Alain,
Many thanks! I’m working on setting up StoneViewer and testing OHIF viewer as well.
Thanks for your help. Kyle