Dome CXtra Guide de l'utilisateur télécharger pdf (Page 46)

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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.

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.)

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Dome CXtra Guide de l'utilisateur Page 46