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Noise Reduction - Sony SRG-120DH Technical Manual

Hd color video camera.
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Table of Contents
Wide Dynamic Range Mode (WD)
The Wide Dynamic Range mode is a function for
dividing an image into several blocks and correcting
blocked-up shadows and blown-out highlights in
accordance with the intensity difference. It enables you
to obtain images in which portions ranging from dark
to light can be recognized, even when capturing a
subject with a large intensity difference that is backlit
or includes extremely light portions.
Images with wide dynamic range are produced by
combining long-exposure signals (normal shutter) with
the signals of the high-intensity portions obtained with
a short exposure (high-speed shutter).
• About WD Set Parameter
(Command: 8x 01 7E 04 00 0p FF)
p: WIDE D (Wide dynamic range mode)
When MODE (exposure mode) is set to FULL
AUTO, the camera distinguishes light and dark
areas in the same scene, adjusts the brightness
for dark areas, and also controls the blown out
highlights.
You can select the wide dynamic range mode
from among OFF, LOW, MID and HIGH.
(0: OFF, 1: LOW, 2: MID, 3: HIGH.)
Notes
• You can set the wide dynamic range mode when the WIDE D is
set to FULL AUTO only.
• When the WIDE D is not set to OFF, the MODE setting is fixed at
FULL AUTO.
• When changing the WIDE D, the luminance change of the screen
occurs for a moment.
• When the change of exposure is big, the screen may stop for a
moment.
• When the wide dynamic range mode is ON, false colors may
appear in some parts of the image. This phenomenon is unique to
wide dynamic range mode, and is not an indication of a camera
malfunction.
• When switching Wide dynamic range mode, images are shown at
a maximum of 8 frames at the same time.
• When the intensity difference of the image is small, there is no
difference in effect between MID and HIGH.
Exposure Compensation
Exposure compensation is a function which offsets the
internal reference brightness level used in the AE
mode, by steps of 1.5 dB.
The reference brightness is 0.
Parameter
Step
Setting value
0E
+7
0D
+6
0C
+5
0B
+4
0A
+3
09
+2
08
+1
07
0
06
−1
05
−2
04
−3
03
−4
02
−5
01
−6
00
−7
High Resolution Mode
This mode enhances edges and produces higher
definition images.
Aperture Control
Aperture control is a function which adjusts the
enhancement of the edges of objects in the picture.
There are 16 levels of adjustment, starting from "no
enhancement. " When shooting text, this control may
help by making them sharper.
Back Light Compensation
When the background of the subject is too bright, or
when the subject is too dark due to shooting in the AE
mode, back light compensation will make the subject
appear clearer.

Noise Reduction

The NR (Noise Reduction) function removes noise
(both random and non-random) to provide clearer
images.
This function has six steps: levels 1 to 5, plus off.
The NR effect is applied in levels based on the gain,
and this setting value determines the limit of the effect.
In bright conditions, changing the NR level will not
have an effect.
Basic Functions
+10.5 dB
+9 dB
+7.5 dB
+6 dB
+4.5 dB
+3 dB
+1.5 dB
0 dB
−1.5 dB
−3 dB
−4.5 dB
−6 dB
−7.5 dB
−9 dB
−10.5 dB
1

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