On Thu, Dec 13, 2012 at 12:07:33PM -0800, Larry Colen wrote: > > I expect that normal downsizing is usually with some sort of boxcar filter, > where the data is simply averaged, rather than analyzed for anomalous spikes > and such.
It's usually a bit more sophisticated than that - even PS Elements, for example, offers a BiCubic smoothing filter. But you miss my main point. Analysing spikes that are lesss than a (re-sampled) output pixel in spread is using data that has a higher spatial frequency than the Nyquist limit for the re-sampled data. You generally don't want to do that. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
