[argyllcms] Re: CMP Digital Target 3 (not 003)

  • From: Pascal de Bruijn <pmjdebruijn@xxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Sat, 7 Mar 2009 13:04:47 +0100

On Sat, Mar 7, 2009 at 1:01 PM, Gerhard Fuernkranz <nospam456@xxxxxx> wrote:
> Graeme Gill wrote:
>> Pascal de Bruijn wrote:
>>> However I was also looking for some comments about what to invest in...
>>> I'd like to hear your opinion on the target designs, and what is
>>> expected
>>> to have the best results with Argyll.
>> It depends a bit on what sort of profiles you want to build.
>> If you are building shaper/matrix profiles and they model your
>> device well, then a smallish number of patches won't be such
>> a limitation. If you're building cLUT based profiles, then you
>> can never have too many patches.
>> The other considerations are:
>>     Gamut. How big a gamut & dynamic range does it cover ?
>>     Evenness and fill. Are the test patches reasonable even,
>>            and do they fill the space. Are there gaps ?
>>                What is the density ?
>>     Accuracy. How accurate are the reference values ?
> ... and not to forget the spectral characteristics of the patches. I'm
> actually wondering, is this a "painted" target (like the ColorCheker),
> or is it photo paper too (like an IT8, but with a different layout)?

I _think_ these are photo paper targets... In what way would this affect
the results?

Pascal de Bruijn

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