window/level with rescale slope/intercept

[gzhang]

Hi, I have some confusion regarding the window/level when it is associated with some rescale slope/intercept:

Suppose a DicomImage object is constructed with
DicomImage::DicomImage (DcmObject * , const E_TransferSyntax, flags = 0, fstart = 0, fcount = 0)
Are the window/level values returned by DicomImage::getWindow() calculated with or without applying the rescale slope/intercept contained in the Dicom header?

Alternatively, if the DicomImage object is constructed with a specific rescale slope/intercept:
DicomImage::DicomImage (DcmObject * , const E_TransferSyntax, const double slope, const double intercept, flags = 0, fstart = 0, fcount = 0),
Are they going to be reflected by the window/level values returned by DicomImage::getWindow()?

This, of course, can be tested, but what if there is some rescale slope/intercept contained in the header and they are just not read in or recognized correctly?

Thanks for the help!

[J. Riesmeier]

Unless you pass the flag CIF_IgnoreModalityTransformation to the DicomImage constructor the Modality LUT transformation (e.g. Rescale Slope/Intercept) is applied.

[gzhang]

thanks! I take it the window/level returned by DicomImage::getWindow() always respect the rescale slope/intercept with a constructor of flags=0.