Vivotek 65HP, IP8155 user manual Excludex Includex

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Measurement Window: This function allows users to configure measurement window(s) for low light compesation. For example, where low-light objects are posed against an extremely bright background, you may want to exclude the bright sunlight shining through a building's corridor.

■Full view: Calculate the full range of view and offer appropriate light compesation.

■Custom: This option allows you to manually add specific windows as measuring areas. The measuring window refers to “weighed window“ where the lighting condition within the particular area is taken into account. Camera firmware then adopts the weighed averages method to calculate the value.

A total of 9 inclusive and exclusive windows can be created for a view. You can create Exclude windows for the camera to ignore the lighting condition of certain areas.

Note that the title pane of the Include/ Exclude windows is not included into the calculation. The inclusive and exclusive windows can be placed one on top of another. The inclusive windows have a higher priority. You can overlap these windows, and, if you place an exclusive window within a larger inclusive window, the exclusive part of the overlapped windows will be deducted from the inclusive window.

■BLC: When selected, a BLC window will appear on screen meaning that the center of the scene will be taken as a weighed area. This option enables light compensation for images that are too dark or too bright to recognize; for example, for the dark side of objects that is posed against bright sunlight.

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Exposure control:

■Exposure level: You can manually set the Exposure level, which ranges from -2.0 to +2.0 (dark to bright). You can click on the Exposure time and Gain control slide bars to specify a range of shutter time and Gain control values within which the camera can automatically tune to an optimal imaging result. You may prefer a shorter shutter time to better capture moving objects, while a faster shutter reduces light and needs to be compensated by electrical brightness gains.

■Exposure mode: Select Auto or Manual mode according to your needs.

Manual: Select Manual to set a fixed exposure time and gain. Then, tune the slide bar to set the Exposure time and Gain Control to the best image quality. A shorter exposure time allows less amount of light to enter the sensor; while a higher gain control value generates certain amount of noises.

Auto: If you set Exposure mode as Auto, the Exposure time and Gain control will not be

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