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[[Category:ECE438 (BoutinFall2009)]]
 
[[Category:ECE438 (BoutinFall2009)]]
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[[Category:discrete-space Fourier transform]]
  
=CSFT of some basic filters=
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=DSFT of some basic filters=
 
Used in [[ECE438]]
 
Used in [[ECE438]]
 
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\right]
 
\right]
 
</math>
 
</math>
with <math>\lambda = 0.5</math>.
+
 
  
 
[[Image:edgedetectfilterfrequencyresponse.png]]
 
[[Image:edgedetectfilterfrequencyresponse.png]]
  
Plot of the frequency response of the filter:
+
Plot of the frequency response of the following filter, with <math>\lambda = 0.5</math>.:
 
    
 
    
 
<math>
 
<math>

Latest revision as of 12:50, 26 November 2014


DSFT of some basic filters

Used in ECE438


Plot of the frequency response of the average filter:

$ h(k,l)=\frac{1}{16}\left[ \begin{array}{ccc}1& 2 & 1\\ 2 &4 &2 \\ 1 & 2 & 1 \end{array} \right] $

Averagefilterfrequencyresponse.png

Plot of the frequency response of the filter:

$ h(k,l)=\frac{1}{9}\left[\begin{array}{ccc}-1& -1 & -1\\ -1 &8 &-1 \\ -1 & -1 & -1 \end{array} \right] $


Edgedetectfilterfrequencyresponse.png

Plot of the frequency response of the following filter, with $ \lambda = 0.5 $.:

$ h(k,l)=\frac{1}{9}\left[\begin{array}{ccc}-\lambda & -\lambda & -\lambda\\ -\lambda &9+8 \lambda & -\lambda \\ -\lambda & -\lambda & -\lambda \end{array} \right] $

Unsharpmaskfrequencyresponse.png

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Abstract algebra continues the conceptual developments of linear algebra, on an even grander scale.

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