Dahua Modular VTO User Manual page 93

Step 3 Parameter
Mirror
Flip
Step 4 Table 7-12 for details.
Parameter
Video Format
Main Frame Rate
Format
Bitrate
Video Format
Extra Frame Rate
Format
Bitrate
Brightness
Contrast
Hue
Saturation
Gain Auto
Scene Mode
Day/Night Mode
Description
Select "On"; the image will be turned over from left to
right.
Select "On"; the image will be turned over from top to
bottom.
Description
Adjust resolution of video, including 720P, WVGA and D1.
Adjust transmission speed, including 3, 25 and 30 frames.
Select according to actual access network, including 256Kbps,
512Kbps, 1Mbps, 2Mbps and 3Mbps.
Adjust resolution of video, including WVGA, D1, QVGA and CIF.
Adjust transmission speed, including 3, 25 and 30 frames.
Select according to actual access network, including 256Kbps,
512Kbps, 1Mbps, 2Mbps and 3Mbps.
Adjust overall brightness in a linear way. The larger the value is,
the brighter the image becomes; and vice versa. When this value
is large, the image dims easily.
Adjust image contrast. The larger the value is, the more
contrasted the image becomes; and vice versa. When this value
is large, dark part of the image is too dark, while bright part
overexposes easily. When this value is small, the image dims.
Adjust image hue. There is a default value according to
sensitometric feature of the sensor. Generally, it is unnecessary
to adjust this value greatly.
Adjust image shade. The larger the value is, the deeper the color
becomes, and vice versa. This value doesn't affect overall
brightness of the image.
Adjust image noise. The less the value is, the smaller the noise
becomes, but image brightness is very dark in dark scene. The
larger the value is, the more brightness will be obtained in dark
scene, but image noise becomes more obvious.
Set white balance mode, mainly affecting overall hue. It is
automatic mode by default.

Disabled: any mode is not set.

Automatic: set white balance automatically, compensate
white balance of different color temperature automatically,
and ensure normal image color.

Sunny: threshold value of white balance is set to sunny day
mode.

Night: threshold value of white balance is set to night mode.
Camera image display is set to colorful or black and white mode.
 Colorful: display colorful image.
 Automatic: automatically choose to display colorful image or
black white image according to ambient brightness.

Black white: display black and white image.
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