LevelOne FCS-4102 User Manual download pdf (Page 37)

Network Camera User’s Manual

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Exposure setting

Here it provides 3 mode: Auto, Backlight and Customized. Auto and

Backlight modes are 2 default settings for general purpose and backlight scene,

respectively.

Customized mode relates to the grid window above can be pointed on for

interesting areas. Within the mode Customized, 16*15 grids windows can be

chosen to match where/what you are interested in. Push down left-button of

mouse and drag to draw the grids for interesting areas, or push down right-button

of mouse and drag to clean the grids for insignificant areas.

“Target Luminance and Offset”

These two slide bar, Target Luminance and Offset represent the expected

target value of the luminance of the weighting result of AE windows in the image

and its tolerance as offset. For example, target luminance is set to 100 and target

offset is set to 20 that means the average luminance of the AE window should be

in the range from 80 to 120 (100±(10. When the actual luminance does not meet

this range, the AE function will adjust shutter and gain to meet it as possible. In

some extreme cases, it cannot reach the target because the environment is too

bright or dark. When the environment is not consistent, e.g. with big moving

objects, and the offset is too narrow, the AE will act more frequently that will

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LevelOne FCS-4102 User Manual Page 37