[argyllcms] Re: Averaging measurements
- From: "Martin Weberg" <martin.weberg@xxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Wed, 23 Apr 2008 00:07:04 +0200
2008/4/22 Klaus Karcher:
> As Gerhard mentioned, you can simply combine several ti3 files and let
> profile do the rest -- but I can understand your demand to do this
> beforehand (e.g. to check for measurement errors / inaccuracies, ...).
For now, I use verify to get dE numbers and output a vrml to see if
there's some visual patterns (probably to subtle to spot)
> argyll's profiles are simply better :-)
:-)
> MeasureTool is great to quickly compare and average Measurement: It's
> convenient to do such things in a GUI app and it's nice to get a visual
> impression of the colors and differences you are dealing with.
True.
> One of MeasuerTools shortcomings are the missing 3D visualization functions
> and the lack of tools to evaluate the *quality* (not only the *quantity*) of
> differences: E.g. it's nearly impossible to discover or analyze even the
> simplest systematic errors like hue, chroma or lightness shifts with
> MeasureTool.
This applies to verify too, I guess.
> I use R <www.r-project.org/> to perform my analyses. I wrote a very simple
> function to import CGATS files and implemented some basic color related
> stuff (e.g a DE00 fuction). Of course averaging functions in all flavors are
> already present in a statistical environment like R. When I'm done, I export
> my data as text tables and add the headers manually (whereas a simple CGATS
> export function could also be written with ease.)
Ahh, I used R analysing flow cytometry data. Maybe I'll try R or
Octave for this purpose.
Martin Weberg
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