VC-5MC-M/C110H User's Manual
Page 66 of 109
9.7
White Balance (Color Camera)
The color camera includes the white balance capability to adjust the color balance of the images
transmitted from the camera. With the white balancing scheme used on the VC-25MC-31 I
camera, the Red, Green and Blue intensities can be adjusted individually. You can set the
intensity of each color by using the
Balance Ratio
parameter. The Balance Ratio value can range
from 1.0 to 4.0. If the
Balance Ratio
parameter is set to 1.0 for a color, the intensity of the color
will be unaffected by the white balance mechanism. If the
Balance Ratio
parameter is set to
greater than 1.0, the intensity of the color will be proportionally increased to the ratio. For
example, if the
Balance Ratio
is set to 1.5, the intensity of that color will be increased by 50%.
The XML parameters related to White Balance are as follows.
XML Parameters
Value
Description
AnalogControl BalanceRatio
Selector
Red
A Balance Ratio value will be applied to red
pixels.
Green
A Balance Ratio value will be applied to green
pixels.
Blue
A Balance Ratio value will be applied to blue
pixels.
BalanceRatio
×
1.0 ~
×
4.0 Adjusts the ratio of the selected color.
Table 9-10 XML Parameters related to White Balance
9.7.1
Balance White Auto
The Balance White Auto feature is implemented on the color camera. It will control the white
balance of the image acquired from the color camera according to the GreyWorld algorithm.
Before using the Balance White Auto feature, you need to set the Data ROI for Balance White
Auto. If you do not set the related Data ROI, the pixel data from the Image ROI will be used to
control the white balance. As soon as the
Balance White Auto
parameter is set to
Once
, the
Balance Ratio values for Red and Blue will be automatically adjusted to adjust the white balance
by referring to Green.
The XML parameters related to Balance White Auto are as follows.
XML Parameter
Value
Description
AnalogControl BalanceWhite
Auto
Off
Balance White Auto Off
Once
White Balance is adjusted once and then Off.
Table 9-11 XML Parameter related to Balance White Auto