avertX HD90IR, User Manual

Page: 34 / 37

34
White Balance
A camera needs to find reference color temperature, which is a way of
measuring the quality of a light source, for calculating all the other
colors. The unit for measuring this ratio is in degree Kelvin (K). Users
can select one of the White Balance Control modes according to the
operating environment. The following table shows the color temperature
of some light sources for reference.
Light Source Color Temperature in K
Cloudy Sky 6,000 to 8,000
Noon Sun and Clear Sky 6,500
Household Lighting 2,500 to 3,000
75-watt Bulb 2,820
Candle Flame 1,200 to 1,500
Auto Mode
•
In Auto mode, white balance works within its color temperature
range and calculates the best-fit white balance.
Manual Mode
•
In Manual mode, you can change the White Balance value
manually, adjusting the R gain and B gain.
Brightness
Adjust the image’s brightness on the camera. The Backlight value is
adjustable from -12 (dim) ~ +13 (brightest).
Sharpness
Increasing the sharpness level can make the image looked sharper; it
especially enhances an object’s edge. The value of sharpness is
adjustable from +1 ~ +15 (sharpest) besides to default value.
Contrast
Correct the contrast of the entire image by adjusting the Contrast level,
ranging from -6 ~ +19. Saturation
Adjust the saturation of color components in an image through the
Saturation function, which is adjustable from -6 ~ +19.
Hue
Adjust the hue of color components in an image with the Hue function,
which is adjustable from -12 ~ +13.
TV System
Select the video format that matches the present video system. United
States and Canada use the NTSC standard, Europe and Asia use PAL.
Logout
Click the Logout tab to change users.