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24
Configure the settings relating to image quality ("Image adjust" setup menu)
Click the [Setup >>] button of "Image adjust" on the [Image/Privacy] tab of the "Image/Audio" page. (
☞
page 23)
The settings relating to image quality can be configured with the setup menu displayed in a newly displayed window.
When the values are changed, the changed values will be applied immediately to the currently displayed image on
the [Image/Privacy] tab.
[Adaptive black stretch]
Select "On" or "Off" to determine whether or not to acti-
vate the darkness compensation function.
The darkness compensation function can make darker
parts of images brighter by digital image processing.
Important:
When "On" is selected for "Adaptive black stretch",
noise in the darker parts may be increased, and
parts around borders between the darker parts and
the brighter parts may become darker/brighter than
the other darker/brighter parts.
On:
Compensates darkness.
Off:
Does not compensate darkness.
Default:
Off
[Light control mode]
Select the light control mode.
Note:
Illuminance may sometimes not be reduced in the
"Indoor scene" mode depending on the installation
environment. In this case, select "Outdoor scene".
Outdoor scene:
Depending on the brightness level
(illuminance), the iris will automatically be controlled
together with the shutter speed adjustment to control
light.
Indoor scene:
The shutter speed will automatically be
adjusted to prevent flicker caused by fluorescent
light.
Default:
Indoor scene
[Back light compensation (BLC)]
Select "On" or "Off" to determine whether or not to acti-
vate the back light compensation (BLC) function.
The back light compensation function can compensate
back light by setting mask areas on brighter parts of
images brighter.
On:
Mask areas will be set automatically.
Off:
Mask areas will not be set automatically. It is nec-
essary to set them manually.
Default:
Off
[Mask area]
When "Off" is selected for "Back light compensation
(BLC)", it is possible to compensate for backlight by
masking the brighter area.
Refer to page 26 for descriptions of how to mask.
[AGC]
Select a method of gain adjustment from the following.
On (High)/On (Mid)/On (Low):
When the luminance of
the subject becomes darker, gain will be automati-
cally incremented and screen will become brighter.
"High", "Mid" and "Low" are indications of gain level.
Off:
Images will be captured with the fixed gain level.
Default:
On (High)
[Auto slow shutter]
The electronic sensitivity enhancement (sensitivity up)
can be carried out by adjusting the storage time of CCD.
The following are available for the sensitivity up.