Image resampling
So far, we considered only power-of-two subsampling
•What
about arbitrary scale reduction?
•How
can we increase the size of the image?
Recall how a digital image is formed
•It
is a discrete point-sampling of a continuous function
•If
we could somehow reconstruct the original function, any new
image could be generated, at any resolution and scale
1
2
3
4
5
d = 1 in this
example