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Chapter 3 Benefit of Sony ADSP (Advanced Digital Signal Processing) 44HDC-900/950/930 Series Product Information Manual
(2) Auto Knee
When the Auto Knee button on the MSU or RCP panel
is pressed, it optimizes the knee point and knee slope
for best reproduction of the high lights. The Adaptive
Highlight control function can also be used in
conjunction with Auto Knee.
Figure 3-2: Auto Knee curve image
(3) Gamma
New 12-bit A/D conversion more precisely defines the
required gamma characteristic by using a gamma
curve created from 48 segments. This is in comparison
with the 32 segments in the previous camera range.
(4) Black Gamma
Black Gamma allows control of the linear part of the
gamma characteristic, providing adjustment of the
shadow areas of the picture during shooting.
Also, the Black Gamma range can be adjusted
depending upon the situation.
(5) Black Clip
Improvements in the Black Clip circuitry have
improved the signal/noise ratio for more natural
reproduction.
(6) Auto Black/White
The HDC-900 Series provides superb accuracy in
black and white balance.
3-2. Precise Handling of Highlight Position
(1) Optimized bit assignment
Highlights are compressed by a pre-knee circuit
before A/D conversion, providing the most efficient
utilization of the 12-bit A/D conversion process.
(2) Knee saturation
Knee Saturation eliminates both the 'washed out' effect
and hue changes in overexposed areas of a picture,
providing more natural color reproduction.
Photo 3-3: Knee saturation ON and OFF
Normal
On
Input signal level
Output signal level
white clip
auto slope
point limit
auto knee circuit
Washed out