Re: ProfileMaker 5
Re: ProfileMaker 5
- Subject: Re: ProfileMaker 5
- From: Dana Rasmussen <email@hidden>
- Date: Tue, 15 Aug 2006 12:46:34 -0700
- Thread-topic: ProfileMaker 5
>
>> One time, I took sheets from the same box of SVPE and profiled an
>> Epson 4000 and a 9600. PMP detected OBs on one but not the other.
>> Same device, no UV filter. I have the measurement files. This is one
>> of those situations where the theory and real world usage do not line
>> up as one would expect.
>
> Is it possible that:
> 1) the box contained sheets that came from different batches, and some had
> more OBs than the others, though they were all supposed to be the same?
> 2) that your measuring instrument was not reliable, and therefore picked up
> readings at different times that differed in the blue end of the spectrum?
>
> Also, in MeasureTool, take a look at the remission diagram for the white
> patches in the mearument data for the paper that does *not* trigger the OB
> coorection option, and see whether there is anything resembling a spike in the
> 380-440nm range.
>
> Regards.
This would be a case where making multiple measurements on the same target,
and using MeasureTool's comparison function might be appropriate. You could
then average the reading if you found that instrument was the source of the
differences.
--
Dana Rasmussen
Seattle, WA
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