Test Your Display Performance

last update: 19/09/2007

In the near future all medical images will be stored as digitial information in huge databases. This enables physicians in a hospital to read and see all available patient data in their own office. Therefore medical physicists feel the need to control the the way images are coded, display performance and viewing environment.
A good introduction on display and vision topics you can find at the sites of Charles Poyton and Robert Berger.. And here you can find Kodak reference gray scales and colors.

Here you can download the program CDisplay to set 'contrast' and 'brightness' and evaluate the the performance of your display.
The performance is measured as a contrast-detail diagram and is based on the work of MAO Thijssen [M.A.O. Thijssen: Bepaling en bewaking van de beeldkwaliteit in de radiodiagnostiek (thesis 1993); Universiteitsdrukkerij KUN].
Below you can see the three most important pages of CDisplay. You can open the images in a separate window but the compression to the gif-format has degraded them.

In this version, 2.04:
- a spherical projection model is applied on the dots,
- the Windows taskbar is set to a invisible status.

display setup

test settings

contrast-detail test

CDisplay is packed as one installation file of program and documentation. Download CDisplaySetup_204.exe (1025 kb). The program is postcardware: when you like it and keep on using it, send me a nice postcard. This software is FREE and may not be sold or distributed on a commercial basis. Distribution through CDROM or Internet is only allowed with written permission of the author.

Presentatie 28/09/2001 in PowerPoint-formaat (290 kb)

When you have comments on the current version or want to be informed on new versions, you can mail me.
Theo van Soest
mail me