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6.7 White-Balance Control
The
White-Balance Control
is used to adjust the gains of the individual color channels to correct for variations in the
color of scene illumination. The
White-Balance Control
is shown below:
The histograms give a graphic illustration of the spectrum of the image, showing what and how often specific colors
appear in an image. The mean of the histogram is displayed textual and as a white vertical line on the histogram. In a
well-balanced image of a white scene the histogram means should all be the same.
Pressing the
Auto Balance
button enables Auto White-Balance. Auto White-Balance modifies the individual color
channel gains to attempt to insure that the means of the histograms are all equal, thus insuring a well-balanced image.
The individual channel gains can be manual adjusted using the sliders on the
White-Balance Control
.
White Balance Control Panel
There are also 4
Simulated Film Speed
buttons on the control. These buttons change the baseline gain on all color
channels to simulate a change in film speed. Increasing the simulated film speed increases the sensitivity of the camera,
but can cause increased noise in the image.
The
B/W
button tells the SharkEye™ application that an optional black and white image sensor is being used rather than
then standard color sensor.
6.8 Lens Control (optional)
The
Lens Control Dialog
can be displayed by selecting
Windows/Lens Control
from the main menu bar. The
Lens
Control Dialog
allows for the control of an optional motorized zoom lens in the SharkEye™ camera. The top row of
buttons controls the zoom of the lens. Pressing one of these buttons can set the focal length. The bottom row of buttons
controls the aperture of the lens. Pressing one of these buttons can set the f-stop of the lens.
Note: Lens control only works on SharkEye™ cameras equipped with a motorized zoom lens.
Histograms
Gain Sliders
Auto-balance
Simulated
Film Speed
