M2502 S H A D I N G C O R -
a d j u s t i n g screw clockwise results in the left side of the image be-
RECTOR
c
o
m
i
n
g
brighter. Turning the adjusting screw counterclockwise
results in the right side of the image becoming brighter.
3. Ve r t i c a l Parabola 0
Adjusting vertical parabola decreases the difference in intensity
between the center and the corners in the vertical direction. Turning
the adjusting screw clockwise results i n the center becoming
brighter. Turning the adjusting screw counterclockwise results in
the corners becoming brighter.
4. Ve r t i c a l Sawtooth
Adjusting vertical sawtooth decreases the difference in intensity
between the top and bottom of the image. Turning the adjusting
screw clockwise results in the top of the image becoming brighter.
Turning the adjusting screw counterclockwise results in the bottom
of the image becoming brighter.
In this position (upper), the output characteristics of the camera are
10.2 M 2 5 0 3
V I D E O
m o d i f i e d to enhance the visualization of detail in dark portions of the
B O O S T E R
i m a g e . The conversion characteristic(Y) is preset to 0.5 although this
value is continuously adjustable from 0.3 to 1.0 (See Section 10-2 for
Y characteristic adjustment).
The basic principle of the conversion is as follows:
7-40.5 (Boost Image)
t
OUTPUT INTENSITY
7
=
1
(Normal Image)
INPUT INTENSITY
Example
Normal Image
B
o
o
s
t
Image
