CS559 - Computer Graphics

The Effects of Filters

Original Image

Box Filters

Bartlett Filters (Triange)

Gaussian Filters (Binomial)
3x3
7x7
11x11
15x15

Edge Detection or High-Pass

These images have all been re-normalized so that the intensity values shown span the full displayable range. The larger filters have larger responses at edges, but that has been normalized out for display.
3x3
7x7
11x11
15x15

Edge Enhancement

Original Image Edge Filter (unnormalized) Original + Edge Filtered

These images are Copyright 2001 Stephen Chenney. I don't really care if you use them as example images, but out of curiosity I would like to know about it.

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Last modified: Mon Feb 12 22:20:02 CST 2001