Canon 4K6021Z User Manual page 138

Menu Description
Submenu
Because black is lighter in the blending area than in other areas, you
can adjust the black level outside the blending area to make this
difference in brightness less noticeable.
Black level
adjustment
Position of end
marker (hidden)
Left image
CBA
Area D
Blending area
Areas C - A (default: 0)
Option
Off Do not adjust the black level.
Sub-
menu
Option
Area
Adjust
Adjust-
ment
type
Black
level
136
Function
Area A: Black level cannot be adjusted.
Area B: Adjust to a black level different
from that of area D.
Area C: Adjust to provide a smooth
transition relative to the black
levels of areas B and D.
Function
Function
Function
Adjust areas C - A to smoothen the
boundaries of the blending area.
Option Function
Select the direction to
Side adjust from Left / Right /
Top / Bottom.
A-Width /
Adjust the widths of areas
B-Width /
A - C.
C-Width
Adjust the black level brightness and
color of areas B and D.
Option Function
B/D-area Adjust the black level
base brightness of B/D areas.
B/D-area Adjust the red, green, and
red / blue components of B/D
green / area black levels
blue individually.