Canon WUX7500 User Manual page 150

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)
Submenu
Off Do not adjust the black level.
Adjust areas C - A to smoothen the boundaries of the
blending area.
Option
Area
Side
A-Width /
B-Width /
C-Width
Adjust the black level brightness and color of areas B
and D.
Option
B/D-area
Black level
base
B/D-area red /
green / blue
150
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
Select the direction to adjust from
Left / Right / Top / Bottom.
Adjust the widths of areas A - C.
Function
Adjust the black level brightness of
B/D areas.
Adjust the red, green, and blue
components of B/D area black
levels individually.