| Convolution |
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| A convolution
operation is a cross-correlation |
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| where
the filter is flipped both horizontally and |
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| vertically
before being applied to the image: |
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| It is written: |
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| Suppose
H is a Gaussian or mean kernel. How |
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| does
convolution differ from cross-correlation? |
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| Suppose
F is an impulse function (previous slide) |
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| What
will G look like? |
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