CTC Union 8309D, User Manual, Page: 18 / 86

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3.4 Image Setup
You can use the tool bar to optimize video Brightness, Contrast, Saturation and
Hue.
3.4.1 Brightness
The higher value the brightness is, the brighter the image is.
3.4.2 Contrast
The contrast is a measure of a display system, defined as the ratio of white to black
that the system is capable of producing. The higher value the contrast is, the more
delicate of color you can have.
3.4.3 Saturation
The saturation of a color is determined by a combination of light intensity and how
much it is distributed across the spectrum of different wavelengths. The higher value
the saturation is, the more colorful the image will be .
3.4.4 Hue
Hue is one of the three main attributes of perceived color, affected by different
wavelength of color. With higher value of hue, color will be much more vivid.
3.4.5 Default
After the adjustment of all setting, you can still click Default to make the setting back to
the original setting.