*From*: Klaus Karcher <lists@xxxxxxxxxxxxxxxxx>*To*: argyllcms@xxxxxxxxxxxxx*Date*: Sat, 29 Aug 2009 15:03:52 +0200

Alastair M. Robinson wrote:

Hi :) Klaus Karcher wrote:any hints how to calculate the median for multidimensional(tristimulus or spectral) data? I've been looking for an algorithmthat doesn't tear apart the measurement dimensions, but my effortswere unsuccessful.Well I guess you'd have to digest each sample into a single-dimensionalvalue to find the median - but in the context of GPLin, the misreads wewere seeing were instantly obvious on a plot of input vs. L*, so I'd besurprised if in practice merely using the L* of Lab or Y of XYZ didn'tturn out to be sufficient. Perhaps using dE from Lab 0,0,0 (or maybeeven the Lab of 50% grey?) might be more robust with yellows.

Klaus

**References**:**[argyllcms] bin/average: averaging and possible outlier elimination for three or more .ti3 sets?***From:*Craig Ringer

**[argyllcms] Re: bin/average: averaging and possible outlier elimination for three or more .ti3 sets?***From:*Alastair M. Robinson

**[argyllcms] Re: bin/average: averaging and possible outlier elimination for three or more .ti3 sets?***From:*Klaus Karcher

**[argyllcms] Re: bin/average: averaging and possible outlier elimination for three or more .ti3 sets?***From:*Alastair M. Robinson

- » [argyllcms] bin/average: averaging and possible outlier elimination for three or more .ti3 sets? - Craig Ringer
- » [argyllcms] Re: bin/average: averaging and possible outlier elimination for three or more .ti3 sets? - Klaus Karcher
- » [argyllcms] Re: bin/average: averaging and possible outlier elimination for three or more .ti3 sets? - Alastair M. Robinson
- » [argyllcms] Re: bin/average: averaging and possible outlier elimination for three or more .ti3 sets? - Klaus Karcher
- » [argyllcms] Re: bin/average: averaging and possible outlier elimination for three or more .ti3 sets? - Alastair M. Robinson
- » [argyllcms] Re: bin/average: averaging and possible outlier elimination for three or more .ti3 sets? - Klaus Karcher
- » [argyllcms] Re: bin/average: averaging and possible outlier elimination for three or more .ti3 sets? - Craig Ringer
- » [argyllcms] Re: bin/average: averaging and possible outlier elimination for three or more .ti3 sets? - Craig Ringer
- » [argyllcms] Re: bin/average: averaging and possible outlier elimination for three or more .ti3 sets? - Alastair M. Robinson
- » [argyllcms] Re: bin/average: averaging and possible outlier elimination for three or more .ti3 sets? - Craig Ringer
- » [argyllcms] Re: bin/average: averaging and possible outlier elimination for three or more .ti3 sets? - Graeme Gill
- » [argyllcms] Re: bin/average: averaging and possible outlier elimination for three or more .ti3 sets? - Graeme Gill
- » [argyllcms] Re: bin/average: averaging and possible outlier elimination for three or more .ti3 sets? - edmund ronald
- » [argyllcms] Re: bin/average: averaging and possible outlier elimination for three or more .ti3 sets? - Graeme Gill