Atlanta BYK 7300 Glossario - Pagina 11
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BYK-Gardner GmbH
3.2 Settings for 2D Reflectivity Data
Reflectivity contrast threshold
... defines the height at which hills and valleys are separated for the reflectivity
contrast calculation. The range is from -1.0 to +1.0. The default setting is 0,
which is also used in the instrument firmware.
Reflectivity contrast threshold = 0 means that the mean height of the topo-
graphy data is used as threshold. A value of -1.0 means that the lowest point is
used as threshold. This selects all data as hills. A value of +1.0 generates the op-
posite output. The relative threshold parameter ensures the comparability
between different samples.
Examples:
The reflectivity data are shown as grey scale images.
Reflectivity Contrast Threshold
283 025 846 - 2008
Hill Size
Threshold = -0.5
Threshold = 0
-0.5
spectro2profiler
Hill Size
Hill Size
Threshold = +0.5
0
Reflectivity Hills
Reflectivity Valleys
+0.5
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