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Chapter 3 Benefit of Sony ADSP (Advanced Digital Signal Processing) 45HDC-900/950/930 Series Product Information Manual
(3) Low key saturation
With conventional cameras, low light areas can be
subject to a reduction in saturation. This can result in
color in these areas being "washed out". The Low Key
Saturation function on the HDC-900 Series eliminates
this problem by optimizing the amplification of color
saturation at low light levels, providing more natural
color reproduction.
Photo 3-4: Low key saturation ON and OFF
Normal
(4) Adaptive highlight control (Auto Knee mode)
Conventional cameras only have a single knee point/
slope characteristic. In contrast, the Sony ADSP
system has multiple knee point/slope characteristics.
The camera monitors the brightness of all areas of the
picture and adapts the knee point/slope for optimum
reproduction. A typical example is shooting an interior
scene which includes a sunlit exterior seen through a
window. This new function applies only to video levels
in excess of the knee point, the middle and low
luminance parts remaining unchanged.
Figure 3-3: Knee curve image
Photo 3-5: Adaptive highlight control ON and OFF
Normal (Olympic Stadium of Barcelona)
On (Olympic Stadium of Barcelona)
(5) Triple Skin Tone Detail Correction
Skin Tone Detail Correction controls the detail level of
those objects which have specific color tones. The
HDC-900 Series allows detail to be set independently
for each of three separate color ranges. Colors are not
limited to skin tones, but can be set for any color. Detail
may be increased or decreased relative to the normal
level.
Phase: Sets the color phase for which Skin Tone
Detail Correction is activated.
Width: Sets the color width for which Skin Tone
Detail Correction is activated.
Saturation:Sets the saturation for which Skin Tone
Detail Correction is activated.
Figure 3-4: Skin Tone Detail Correction
On
Colorimetry in dark areas are improved.
white clip
auto slope
knee point 0
knee point 1
knee point 2
knee point 3
knee point n
Output signal level
Intput signal level
........
R-Y
Width
B-Y
Phase
Saturation