D-Link DRU-100C, User Manual

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Under the Camera Controls tab, make the appropriate
adjustments from the menu list to fine tune the image related
parameters such as Brightness, Contrast, Saturation,
Sharpness, Hue, Backlight, and Exposure or set to Default.
Brightness tells how much white or black that exists in the
image. It is the amount of light reflected in proportion to the
amount absorbed by the material in the image. Therefore,
reflective objects are bright, and vise versa.
Contrast is the degree of difference in tone between the light
and dark parts of an image. The higher the contrast the
brighter the image and the lower the contrast the darker it will
become.
Saturation is an expression for the relative bandwidth of the
visible output from a light source. As saturation increases,
colors appear more pure and as it decreases, colors appear
more washed out.
Sharpness determines how crisp the image quality looks. For
example, when sharpness is high, the picture will look crisp and
edges will be well-defined.