Urmet 1092/256HZ Manual De Usuario página 22

DEFOG
This function allows you to increase image contrast in order to improve its visibility in blurry conditions. For
example the fog reduces the visibility. Enable this filter to limit this condition. The contrast balance alters
also the saturation, the profile and the threshold for detecting the subject movement.
If you select AUTO and press the button, you can configure filter position and size, change the shade by
using values 0 to 2 or reset the previous values.
An object with a strong light in the background usually appears dark and not so visible if compared with the
rest of image. The BACKLIGHT function allows to solve this problem and obtain a good compensation in
the selected area (defined by position and dimension) increasing the brightness if the area appears dark or
reducing it if too clear.
Selecting this menu item you can choose among the options OFF (not active), BLC and HSBLC.
BLC is accessed by selecting the following submenu:
LEVEL
AREA
DEFAULT
RETURN
The options available for LEVEL are: middle, high, low. The function AREA allows to define dimension and
position.
HSBLC is accessed by selecting the following submenu:
SELECT
DISPLAY
BLACK MASK
LEVEL
MODE
DEFAULT
RETURN
The SELECT menu provides 4 areas. For those areas set their position and size (DISPLAY), their
brightness level (0 to 255) and their MODE (ALL DAY and NIGHT, which you can adjust the AGC LEVEL
for) to enable the BLACK MASK . You can use the DEFAULT command to reset the previous values.
Selecting LEVEL allows to choose the desired percentage.
When adjusting the Level, make sure the set up adjusting value is acceptable for both day and night.
Use a low percentage if there is faint light around the light source (to obtain the max. compensation); use a
high percentage if there is bright light around the light source (to obtain the min. compensation).
22
BACKLIGHT - BACK LIGHT COMPENSATION
BLC
MIDDLE
RET
HSBLC
AREA1
ON
ON
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NIGHT
RET
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