Re: 3x3 (graphics) kernel

A kernel is a matrix used to modify an image, usually by taking the dot product of the preimage and the kernel after shifting the kernel over every pixel in the preimage.

It's been a while since I've done it, but an "edge detect" kernel would look something like this:

-1 0 1
-1 0 1
-1 0 1

This detects vertical lines only, not horizontal.

Look into image processing for more information.


Thank you.
.

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