Display functions
ABOUT DISPLAY FUNCTIONS
Native, uncorrected panels will display all grayscale/color levels at an equal luminance. Studies have shown however, that in medical images certain grayscale/color parts contain more diagnostic information then others. To respond to these conclusions, display functions have been defined. These functions emphasize on these parts containing crucial diagnostic information by correcting the native panel behavior.
Native | If you select Native, the native panel |
| behavior will not be corrected. |
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Dynamic Gamma 1.8 | These are gamma functions that are shifted |
Dynamic Gamma 2.2 | to take into account the |
| luminance of an LCD panel when driven |
| with a “black” signal. |
| They are especially useful in CT applications |
| to improve the perception of low |
| Haunsfield values. |
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DICOM | DICOM (Digital Imaging and |
| Communications in Medicine) is an |
| international standard that was developed |
| to improve the quality and communication |
| of digital images in radiology. |
| In short, the DICOM display function results |
| in more visible grayscales in the images. |
| Barco recommends selecting the DICOM |
| display function for most medical viewing |
| applications. |
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User | This display function will be automatically |
| selected when display functions are |
| defined by MediCal QAWeb. |
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Gamma 1.8 | Select one of these display functions in |
Gamma 2.2 | case the display is to replace a CRT display |
| with a gamma of 1.8 or 2.2 respectively. |
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