CHEETAH 3G-SDI Camera
November 16, 2017
Page
35
of
53
Rev 1.1
White Balance Presets
Off
No white balance performed.
Once
The camera analyzes only one image frame, calculates only
one set of color correction coefficients, and corrects all
subsequent frames with this set of coefficients.
Auto
The camera analyzes the entire frame, derives a set of
correction coefficients on each frame, and applies them to
the next frame.
Manual
The camera uses the correction coefficients as entered
from the user.
Indoor 3200
Color temperature setting typically used for indoor lighting.
Outdoor 5600
Color temperature setting typically used for outdoor
lighting.
Table 5: White balance presets.
Selecting Auto or Manual provides additional options and settings.
To set Auto or Manual white balance
:
1.
Click the
White Balance
drop-down and select a preset.
2.
If selecting
Auto
, you can change the auto tracking speed by clicking the
AWB Tracking Speed drop-down and selecting 1x, 2x, 3x, 4x, or 5x.
Tracking speed settings control the
camera’s
speed of response to
changes in scene illumination
―
1x is the slowest response, 5x is the
fastest response.
3.
If selecting
Manual
, use the up/down scroll to enter white balance
coefficients for each color (Red, Green, and Blue). Coefficient values
affect the intensity of each color and range from 0 to 4095.
For best color accuracy and stability when the spectral source is constant, image
a uniform grey target with the camera using the desired light source. Select Once
to find the correct R, G, and B coefficients and jot down these values. Then select
Manual and load these coefficients into the camera. Leave Manual selected. The
camera will now apply these coefficients to every frame captured.
3.10 Output Control
The Output Control screen provides full control over the camera
’s
digital data
output.
