On Wednesday 29 October 2008, Nicolas Robidoux wrote:
> Implementation note:
> If two different methods are used, do the upsampling with the "better
> for enlargements" method first (unless you can do them both at once,
> but this is quite challenging programming wise). This approach is
> slower, but will give better results.

Whatever your final thoughts might be, please keep in mind that there are 
cases where there's both enlargement and shrinking in the same layer, and 
where you can't simply decompose them into vertical and horizontal parts 
(think perspective transform) or where horizontal or vertical distances and 
areas are conserved (rotating, shearing).  Interpolation is necessary in 
these cases as well.


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