Choosing Display Calibration. Dome CXtra

Choosing Display Calibration

Besides DICOM calibration, you can choose to use exponential, gamma, or original display calibration. Open the CXtra Services menu, then select DICal Panel Configuration and Calibration tab.

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Choose one of these response functions for auto-calibration:

• DICOM Response Function – Calibrates to the DICOM Grayscale

Standard Display Function. See DICOM PS 3.14-2000 (Digital

Imaging and Communications in Medicine (DICOM), Part 14:

Grayscale Standard Display Function).

• Exponential Response Function – Calibrates to an exponential (log linear) response function. The logarithm of the luminance is a linear function of the digital driving level.

• Gamma Response Function – Calibrates to a gamma (nonlinear) response function. The default value is 2.2. The range extends from

1.5 to 3.5; the CRT gamma standard ranges from 2.0 to 2.5.

• Original Response Function – Calibrates the desktop its original response function. The characteristic curve is the response function of the display with no calibration applied. This is the response function created by loading a linear gamma correction table, or GCT. (This function is appropriate for running typical

Windows applications.)

NOTE: Upon software installation, only Desktop DICOM Calibration and Desktop Original Calibration are default entries on the services menu. On the Calibration tab, select or deselect check boxes in the

Menu field to customize calibration entries on the services menu.

To switch to another calibration

Open the Dome CXtra Services menu. Choose from the display calibrations you have added to the services menu. Otherwise, go to the Calibration tab of the DICal Panel Configuration dialog to make a choice. Click OK to finish. Your selection causes an immediate change to the display calibration.

NOTE: If a photo-editing program or other Windows application performs a color calibration while DICOM Calibration is selected, the

DICal menu selection switches to Original Calibration and a warning appears. To reapply the DICOM calibration, select the command from the services menu or the DICal Panel Configuration dialog.

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