I need to do extensive window leveling work to achieve an acceptable display.
How do you guys handle this kind of problem? Is there a trick, maybe script, to get a good initial brightness and contrast (lung window) in all CT?
Probably you just need to set the same window level. Easiest is to use one of the presets in the Volumes module - right click on the volume in the Data module and pick Edit properties then click the lung preset. For dicom we use the window/level from the header (usually set by the radiographer) but for non-dicom there’s a formula which depends on the values in the data, which can vary.
I see, there is nothing further to test then. I don’t think nrrd files can store the recommended window/level setting, so for those files the window/level setting is determined automatically (by using a range between the 0.1 and 99.9 percentiles of the intensity histogram).