Posted by
Burger Wilhelm on
Apr 18, 2008; 11:08am
URL: http://imagej.273.s1.nabble.com/Lanczos-interpolation-tp3696296p3696300.html
Christophe,
I have implemented various Lancsos interpolators for ImageJ for our book
examples (in www.imagingbook.com, Sec. 16.3.6) and I can send you the
corresponding Java code if you like. However, despite its recent
popularity, Lancsos interpolation does not seem to carry any particular
advantage (quality and performance-wise). For good results I would
instead recommend the Catmull-Rom spline interpolation or the
Mitchell-Netravali approximation methods.
Wilhelm.
> -----Original Message-----
> From: ImageJ Interest Group [mailto:
[hidden email]] On
> Behalf Of Christophe Leterrier
> Sent: Thursday, April 17, 2008 10:57 PM
> To:
[hidden email]
> Subject: Lanczos interpolation
>
> Is there any ImageJ plugin that performs Lanczos
> interpolation/resampling ?
> I saw that the "Interpolate" option in the "Adjust size" command uses
> bilinear interpolation, which creates aliasing when I reduce sizes of
> photographs (I use IJ to generate thumbnails...). There is
> the BIG Resize
> plugin (
http://bigwww.epfl.ch/algorithms/ijplugins/resize/)
> that uses "least
> square" method, but how does it compare to Lanczos in terms
> of quality for
> 1) downsizing or 2) upsizing ?
>
> Christophe
>