NEC GammaCompMD QA Manual de usuario descargar pdf (Pagina 69)

GammaCompMD QA Client User Manual

Display Function The display function can be selected from the following four types

・ Native

When Native is selected as the target curve, a grayscale calibration is not performed. The

luminance characteristics of the display are only measured.

・ Gamma Curve Value

Fixed Gamma correction values from 1.00 to 3.00 may be selected.

・ DICOM GSDF

Default setting for DICOM Grayscale Standard Display Function calibration (DICOM Standard,

Part 14). Values from 0.50 to 1.00 may set when the Use Scale Factor checkbox is checked.

・ Custom Curve

When the Edit button is clicked, the Custom Gamma Curve dialog box, as shown in Figure 45,

is displayed. This shows a graphical representation of the display’s luminance characteristics.

Figure 45: Custom Gamma Curve dialog box

 buttons

After dragging the mouse to specify a range on the graph in a rectangle, these

buttons can be used to zoom in or out on the curve.

 L* and Log Linear buttons

Select pre-defined custom curves with these buttons.

Note: The NTSC Video, SMPTE-240M as well as the Import button are disabled for display

model which do not support this feature.

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NEC GammaCompMD QA Manual de usuario Pagina 69