Øyvind Kolås wrote:
> This code implements a perfect box filter for this case, what needs to
> be added on top
> of this to be able to do good estimate (maybe even exact) box filter
> resamplings is trilinear interpolation by doing bilinear interpolation
> on the two closest 50% 25% 12.5% .. levels of
> the scaled pyramid.
I'd suggest having a read of Graphics Gems I, page 147,
"Filters For Common Resampling Tasks" by Ken Turkowski.
Box and tent filters are easy to implement, but not necessarily
the best choices...
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