[argyllcms] Re: using a digital camera as a colorimeter

  • From: "Greg Sullivan" <greg.sullivan@xxxxxxxxxxxx>
  • To: <argyllcms@xxxxxxxxxxxxx>
  • Date: Fri, 7 Oct 2005 23:23:09 +1000

(note that I *intentionally* dim the lighting when I take the measurements.
Not pitch black, but quite dim. I've been toying with the idea of using a
light to light up the target & colorimeter during placement, and turning it
off during the measurement. I guess the PC monitor could be used as the
illuminant, really)

-----Original Message-----
From: argyllcms-bounce@xxxxxxxxxxxxx [mailto:argyllcms-bounce@xxxxxxxxxxxxx]
On Behalf Of Greg Sullivan
Sent: Friday, 7 October 2005 23:19
To: argyllcms@xxxxxxxxxxxxx
Subject: [argyllcms] Re: using a digital camera as a colorimeter

Alastair wrote:
> Indeed - it really depends what you're trying to achieve.  300 patches 
> is more than enough for pleasing photographic output, providing your 
> printer driver is "well-behaved".  With colour adjustments disabled, 
> Gutenprint seems to fit this description very well...

Ok. (I'm using the Epson ill-behaved RGB driver. :)

I don't know anything about Gutenprint yet - I'd love to have a method of
bypassing the Epson driver without having to fork out lots of money - 
if Gutenprint provides a very simple "RIP" I'm interested to learn about

> I took me about 15 minutes last night to measure 144 patches, pressing 
> the button each time, and with patches just under 12mm square.  The 
> light in my office isn't good enough to use auto-pickup mode...

FWIW, I find it trivially easy to place the puck when the patches are
printed in random order, with very dim lighting. I have set the inter-patch
time to one second.


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