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Parameter Description
Noise
Video noise can be defined as the image quality degradation caused by
optical system distortion or hardware device during transmission.
Color Cast
Generally, video images are color images that contain color information,
such as RGB. When these three components in the image appear in some
unusual proportion, it means that the image has a color cast.
Out of Focus
The image with good definition contains rich details. The reason for the
image definition decline is that the generation of blurring phenomenon.
Image blurring is a common image quality reduction problem. In the process
of image acquisition, transmission and processing, many factors will cause
the image blurring, which is defined as out of focus in video diagnosis
Overexposure
The brightness of the image refers to the intensity of image pixels. Black is
the darkest while white is the brightest. Black is represented by 0 and white
is represented by 255. It indicates the brightness degree of the image. When
the brightness value of the whole image exceeds the threshold value, it is
Step 5 Click OK to save the configuration.
System returns to Figure 4-73.
Step 6 Configure the alarm activation parameters.
Step 7 Click OK or Apply to save the configuration.
4.6.4.2 IVS Plan
From main menu>Setup>Event>IVS plan, you can go to the IVS plan interface. See Figure 4-75.
Figure 4-75
Select a channel from the dropdown list. Click Add button, you can see an interface shown as below. See
Figure 4-76.
Select a channel from the dropdown list and then set preset. Click Add button and then set the
corresponding rule.
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