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| Filter type | Kernel or mask | Example |
|---|---|---|
| Original Image | 
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| Spatial Lowpass | 
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| Spatial Highpass | 
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| Fourier Representation | Pseudo-code:
image = checkerboard F = Fourier Transform of image Show Image: log(1+Absolute Value(F)) |
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| Fourier Lowpass | 
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| Fourier Highpass | 
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