Catmull–Rom spline Vs Mitchell-Netravali

[iosoio]

Hello.

Can anybody give me me some practical advise on using Catmul Vs Mitchell and other resampling algorithms; or point me to some resources good to understand which is better and when?

Something deeper than this:
https://miguelwrattensanchez.wordpress. ... chell-rom/

When I have to double the file size I use SAR PseudoLAD (Poisson sharpener or Jensen Edge to sharpen) and Photoline Lanczos 3 to downscale; sometimes Catmul for small non multiple enlargements but I would like to know more to apply a logic choice.
http://www.general-cathexis.com/

I've found a couple of pages but they are pure mathematics.

[Herbert123]

An excellent explanation, plus comparisons:
https://pixinsight.com/doc/docs/Interpo ... ithms.html

Both Catmull-Rom and Mitchell-Netravali do a great job when down-sampling images. Catmull-Rom keeps the details sharper/more contrast rich than MN.