<s>
The	O
Fermi	B-Algorithm
filter	I-Algorithm
is	O
a	O
common	O
image	B-Algorithm
processing	I-Algorithm
filter	O
that	O
uses	O
the	O
Fermi	O
–	O
Dirac	O
distribution	O
in	O
the	O
frequency	O
domain	O
to	O
perform	O
a	O
low-pass	B-Algorithm
filter	I-Algorithm
or	O
high-pass	O
filter	O
similar	O
to	O
a	O
Gaussian	B-Error_Name
blur	I-Error_Name
,	O
but	O
the	O
harshness	O
can	O
be	O
scaled	O
.	O
</s>
