[cairo] image downsampling quality

Søren Sandmann sandmann at cs.au.dk
Thu Jan 2 13:25:36 PST 2014

Krzysztof Kosiński <tweenk.pl at gmail.com> writes:

> Impulse sampling is always used when the given dimension is upscaled.
> For downscaling, it seems that Lanczos3 is used for both sampling and
> reconstruction. Should Lanczos3 sampling be used together with box
> reconstruction in that case?

For downscaling an image using Lanczos sampling, I'd use impulse


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