[Chroma] - Panasonic VariCam LT Operating Manual

r Relationship between color composition of video signal and color difference signal
The color composition of video signal (R/G/B) can be converted to color difference signal (R-Y/B-Y) as in (Fig. 1).
Within this, use the axis in the red-cyan color phase (I axis) and axis in the green-magenta color phase (Q axis) to set the area to apply the skin tone
against the [A], [B], or [C] table selected in [DETECT TABLE].
f [- I CENTER]:
Sets the center position of the upper I axis (setting the area that applies the skin tone).
f [- I WIDTH]:
Sets the width of the area that applies the skin tone of the upper I axis that focus on [- I CENTER].
f [- Q WIDTH]:
Sets the width of the area that applies the skin tone of the upper Q axis that focus on [- I CENTER].
f [- Q PHASE]:
Sets the phase of the area that applies the skin tone regarding to the Q axis.

[CHROMA]

Set the saturation and phase of the color in [MENU] → [SCENE FILE SETTINGS] → [CHROMA] ( or [MENU] → [SYSTEM SETTINGS] → [COLOR
SETTINGS] → [CHROMA LEVEL]).
The effect is applied to the entire video. It cannot be set for individual color hues.
f [LEVEL] (or [CHROMA LEVEL]): Sets the chroma level of the P
color) increases or decreases in the whole image.
f [CHROMA PHASE]: Finely adjusts the chroma phase of P
is used.
Chapter 4 Video Recording and Color Grading — Image quality adjustment
255
[- I WIDTH]
[- I CENTER]
[- Q WIDTH]
Yl
[- Q PHASE]
and P
R
R-Y
R
Mg
255
0
B
G
Cy
I axis
Fig. 1
and P signals. When the vector scope is used, the distance from the center (no
R B
signals. The entire video rotates clockwise or counter-clockwise when vector scope
B
– 76 –
Q axis
B-Y/0°