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ROI is the abbreviation for Region Of Interest. ROI can be set up as circular,
rectangular, line and point measurement areas.
The circular measurement area is abbreviated as Ci; The rectangular
measurement area is abbreviated as Ar; The linear measurement area is
abbreviated as Li; The point measurement area is abbreviated as Sp.
Click to add a movable measurement point.
Click to add a movable rectangle measurement area.
Click to set the temperature rise between the measurement ROI and
a reference temperature value, or the temperature difference between the
temperature measurement ROIs.
Click to clear all ROIs.
Display settings button for ROIs.
Click to display more function buttons.
Click to add a movable measurement line.