Re: About Averaging
Re: About Averaging
- Subject: Re: About Averaging
- From: Ernst Dinkla <email@hidden>
- Date: Mon, 23 May 2011 15:41:50 +0200
On 05/23/2011 02:54 PM, edmund ronald wrote:
A cheap way to improve your profile by averaging is probably to print at
least 4 rotated scrambled versions of your target in different places on the
sheet, and average the measurements of those sheets.
Edmund
I suggested to create a target sheet and patch distribution that allows
spectrometer scanning in two directions. That does not have to be a
topological miracle but the right margins and an extra table of
reference data should be enough. It can deal with the paper texture
(scan direction) and print direction (inkjet) artefacts. Must be cheaper
than printing the target twice.
With printer integrated spectrometers the print width differences could
either be positive or negative if the patches are spread on the paper
roll width. The HP Z models allow that. I doubt they show much variation
over the print width though, they only know a bidirectional print mode
and if ink feed starvation or heads hotting up play a role then the
minimal patch width of 14 mm (square) 16mm (hexagonal) should compensate
that. There is more integration happening too with that spectrometer not
so close to the media.
--
Met vriendelijke groeten, Ernst
Dinkla Gallery Canvas Wrap Actions
| Dinkla Grafische Techniek |
| www.pigment-print.com |
| ( unvollendet ) |
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