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Old 1st June 2009, 14:31   #50  |  Link
Wilbert
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Join Date: Nov 2001
Location: Netherlands
Posts: 6,364
Sorry for the late response.

Quote:
From the way these are expressed, I assume that they are calculated using the 'Panorama Tools' method (as for existing Spline16, etc), rather than the alternative method of fitting a spline through the kernel crossing points.
Yes, indeed.

Quote:
Any thoughts on the relative merits of the two approaches? It is clear that they give different coefficients and I suspect they are fundamentally different in nature, although they may both be equally valid as approximations to a sinc filter.
The coefficients seem to be close to each other (well i only looked at Spline64, dunno about the other ones). I implemented both resizers here: http://www.geocities.com/wilbertdijk...Resize_v01.zip

For the alternate method you can choose the number of "taps". I leave it up to you guys to find and report about the differences
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