Figure 4.37: Commonly used LUT transfer curves
300
250
200
150
100
50
0
0
Figure 4.38: Applying a linear gain with clamping to an image
MAN064 02/2020 V1.1
y = f ( x )
y
m a x
d
Grey level transformation − Gain: y = (255/1023) ⋅ a ⋅ x
200
400
x: grey level input value (10 bit) [DN]
c
b
=
x
x
0
1
600
800
4.8 Grey Level Transformation (LUT)
x
x
m a x
a = 1.0
a = 2.0
a = 3.0
a = 4.0
1000
1200
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