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3 Adjust Yl&G Mask Range.
Adjusting [Yl&G Yl Level] and [Yl&G G Level] may also affect
the I-axis (color close to the skin tone). When [Yl&G Yl Level]
is increased, the skin tone becomes slightly more yellowish.
On the other hand, when [Yl&G G Level] is increased, the
skin tone becomes slightly more greenish.
Adjust [Yl&G Mask Range] if you want to increase YI&G
toward yellow and green without affecting the skin tone. As
illustrated in the chart below, [Yl&G Mask Range] adjusts the
gray area from the R-axis, which disables the [Yl&G Yl Level]
and [Yl&G G Level] adjustments.
Increasing the [Yl&G Mask Range] value widens the
masking range. By doing so, the effect on the I-axis (color
close to the skin tone) due to adjustments of [Yl&G Yl Level]
and [Yl&G G Level] is reduced. However, this also reduces
the amount of correction by [Yl&G Yl Level] and [Yl&G G
Level].
4 Adjust the hue.
Adjust the hue based on the R-, G-, and B-axes.
As illustrated in the chart below, increasing the value rotates
the hue in the anti-clockwise direction on the vector scope,
with the respective axes as the center. Decreasing the value
rotates the hue in the clockwise direction.
B&Mg B Level Increase the value:
Corrected Y increases
Decrease the value:
Corrected Y
decreases
B&Mg Mg Level Increase the value:
Corrected Y
decreases
Decrease the value:
Corrected Y increases
Yl&G Mask Range
[Yl&G Yl Level] and [Yl&G G Level]
adjustment
R
Cy
B
G
YI
I
Mg
R
Cy
B
G
YI
I
Mg
R
Cy
B
G
YI
I
Mg
R Rotation Increase the value:
Hue rotates in the anti-
clockwise direction with
R-axis as the center.
G Rotation Increase the value:
Hue rotates in the anti-
clockwise direction with
G-axis as the center.
B Rotation Increase the value:
Hue rotates in the anti-
clockwise direction with
B-axis as the center.
R
Cy
B
G
YI
I
Mg
R
Cy
B
G
YI
I
Mg
R
Cy
B
G
YI
I
Mg