Digital noise reduction (dnr), Black and white mode (bw mode) – Panasonic WV-CW864A Manuel d'utilisation

Page 41

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NORMAL: Sets the horizontal resolution to more

than 480 lines.

HIGH: Sets the horizontal resolution to more than

510 lines.

Note: After selecting HIGH, noise may increase

when the SENS UP function is activated under
low illumination.

• Digital Noise Reduction (DNR)

DNR may be used to improve quality under low light
conditions. There are 4 levels of DNR, which may be
selected depending on local site conditions. Factory
default setting: LOW2
You may need to try different settings to find the most
suitable conditions for your application.
Move the cursor to DNR and select LOW1, LOW2,
HIGH1 or HIGH2 with the joystick.

LOW1: DNR level is low. The after-image remains.
LOW2: DNR level is low. The after-image is

reduced.

HIGH1: DNR level is high. The after-image remains.
HIGH2: DNR level is high. The after-image is

reduced.

• Black and White Mode (BW MODE)

Move the cursor to BW MODE and press the CAM
(SET) key. The BW MODE menu appears. You can set
up the BW mode on this menu.

BW Setting

1. Move the cursor to BW and select AUTO, ON or

OFF with the joystick. Factory default setting:
OFF.

AUTO: The camera selects the black and white

mode if the picture is dark, or the color mode
if the picture is bright enough.

ON: The black and white mode is selected.
OFF: The color mode is selected.

Note: Selecting the color mode is disabled if

ALARM IN 4 is set to B/W on the special 1 menu.

2. If you have selected AUTO, press the CAM (SET)

key to open the BW AUTO submenu.

3. Select HIGH or LOW for the threshold level at which

the camera automatically switches to BW or color
mode. Default: HIGH
The illuminance shown below is based on the
assumption that the camera is used in an area lit by
halogen lamps, and that AGC on the menu is set to
MID.

HIGH: approximately 6 lx
LOW: approximately 2.5 lx
Note: When near-infrared lamps are used, the

image may be displayed out of focus and
mode switching may not perform automatical-
ly.

4. Move the I cursor to set DURATION TIME.

Default: 30 seconds
The camera determines whether to switch the
mode when the time set for holding a picture
motionless on the screen has elapsed.
Available duration times: (L) 10 s

↔ 30 s ↔

60 s

↔ 300 s (H)

Note: A pan/tilt, zoom or focus operation will

restart after the holding time.

PIX SENS UP Setting
Move the cursor to PIX SENS UP and move the joy-
stick to select OFF or X2 AUTO.

X2 AUTO: Sensitivity will be automatically doubled

at the maximum in the black and white mode.

OFF: Sensitivity will not be enhanced.
Notes:

• "X2 AUTO" is not available when AGC is set to

OFF. "X2 AUTO" is automatically set to OFF.

• When the picture becomes stable, the luminance

may change for a moment.

BURST (BW) Setting
Move the cursor to BURST (BW) and select ON or
OFF with the joystick. Default: ON.
ON: The burst signal is supplied along with the

black and white composite video.

OFF: The burst signal is not output.
Note: It is recommended to select ON usually.

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NORMAL


PUSH SET

PUSH SET

** SPECIAL2 **
CHROMA GAIN – +
AP GAIN – +
PEDESTAL – +
HUE –

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RESOLUTION
DNR LOW2
BW MODE
PIX OFF
REFRESH
CAMERA RESET
RET

** BW MODE **

BW OFF

PIX SENS UP OFF
BURST(BW) ON

RET

** BW MODE **

BW AUTO
LEVEL HIGH
DURATION TIME

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L H
PIX SENS UP OFF
BURST(BW) ON

RET

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