Page Up
Page Status
Displayed Event Number
Page Down
Histogram Area
Total Event Count
Figure 5-8 Preview Mode
5.6.1 Histogram Area
The Histogram Area in the event Preview mode shows the event occuring time and
the percentage of the detected motion with red bars. It also indicates the current
displayed events with green bars and the selected event with blue bars. If you want
to access the Histogram Area, you must change the area selection indicator to the
Histogram Area. You can then mark a color-inverted region over it by holding down
the left mouse button and drag the cursor to the desired area (as shown in Figure
5-9).
Dark Region
Inverted Region
Selected event
Displaying events
Figure 5-9 Histogram Area in Preview Mode