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Sobel Edge Detection<br />
⇨ Apply each filter kernel to the image<br />
G x<br />
= F x<br />
∗A<br />
G y<br />
= F y<br />
∗A<br />
G x<br />
and G y<br />
are the gradients in the x and y directions<br />
The combined magnitude of these gradients can be<br />
used to detect edges<br />
G=G x 2 G y<br />
2<br />
20-May-2009<br />
© Copyright Ian D. Romanick 2009
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