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Legacy Documentation
Digital Image Processing
(2000)
This is documentation for an obsolete product.
Current products and services
Function Index
HighpassFilter
HighpassFilter[
n
]
returns a linear-phase FIR filter of length
n
with a highpass frequency response characteristic.
HighpassFilter[
n
1
,
n
2
,
...
]
returns a multidimensional linear-phase highpass filter.
HighpassFilter
is defined as
h
H
[i,j,...] =
[i,j,...] -h
L
[i,j....]
where h
L
[i, j,...] is the moving average filter and
[i,j,...] is the
DiscreteDelta
function.
See also User's Guide
5.3
.
Example
This loads the package.
In[1]:=
Here we calculate a 5 × 5 highpass filter.
In[2]:=
Out[2]//MatrixForm=
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