111
Playback Program (continued)
Using IP surveillance Software (continued)
Histogram Area
The histogram area in the normal display (single frame) mode only shows the
events’ occurred time and the percentage of motion detection with red bars. If
you want to access the histogram area, you must change the area selection
indicator to the histogram area. You can mark one time interval you want to see
with a color-inverted region by dragging your mouse with the left button pressed
(as shown above). When you release the left button, the color-inverted region
will be enlarged to the whole histogram area. This color-inverted region will be
the new period the program is going to display. If you change your mind and
don’t want to see that period, you can cancel it by just pressing the right button
of your mouse with the left button still pressed. If you click on the left button
without dragging it, the action will be the same as clicking on the pull bar in the
same x-axis position. That means the playback system will shift to the pointed
time and show video on the displaying frame. Besides, the dark regions in the
histogram area mean there is no existing video data in that interval. If you click
on those regions, nothing will happen except a warning message will pop up.
Using Tools
In this section, the method of how to use the tools in the control panel (shown
in the main playback window) will be discussed.
Selector Tools
The figure below shows the selector tools. They are location selector, period
selector for the selection of the beginning time and the ending time, playback
method selector, and alert area selector.
Dark Region
Inverted region