One question: where did the IT8.7/2 target you used came from? Something
your bought? And it came with its "Reference" data? Which you used in Argyll
to build the scanner profile? When you open up the scanned target in
Photoshop (assuming you do have it) and assign the scanner profile (or use
some other application which supports ICC color management), does the image
on screen looks remotely close to the original?
The dingy yellowish "cast" you see may come from the color-managed IT8.7/2
chart itself. Take a look at the CIE Lab value of the "Paper" in the
Reference data: if the b* value is relatively "high", like +2.00 or +3.00,
it would indicate that the paper color is indeed on the yellowish side.
When converting from the scanner profile to some other Destination, make
sure the Rendering Intent is not set to Absolute colorimetric, otherwise,
that yellowish tinge will show up everywhere and seem to "bias" your
results.
I wish you had access to a spectrophotometer. Building output profile from
spectrophotometer measurements is best. Have you heard of the Nix color
sensor? I bought one recently for about $100 and was surprised by the
relative quality of measurements. There is always eBay.... where I bought
many of my instruments over the year.
I wish I could help you more.
/ Roger
www.graxx.ca
-----Original Message-----
From: argyllcms-bounce@xxxxxxxxxxxxx <argyllcms-bounce@xxxxxxxxxxxxx> On
Behalf Of eyurtese@xxxxxx
Sent: Saturday, June 1, 2019 5:50 PM
To: argyllcms@xxxxxxxxxxxxx
Subject: [argyllcms] Epson ICM settings Windows 10 results in strange
colors?
I am having trouble with windows color management. I am trying to calibrate
my printer using Argyll CMS and the end result is slightly off...
I already asked this from dpreview so here is the link to detailed
explanation with images:
https://www.dpreview.com/forums/post/62727691
To summarize, I am using `cctiff` to apply srgb->custom printer profile
conversion.
* If I print the resulting image WITHOUT color management then the image is
as I expect it to be.
* If I upload the custom printer profile to windows color management and
select it as default. Then print pre-converted original, letting ICM do the
task itself, then the printout is different.
The weird thing is that I enabled print preview in Epson driver and the
preview image is exactly same as the `cctiff` converted image. But when it
is printed it looks different.
I think print-preview of Epson shows the final data to be sent to printer so
I do not quite understand why the end result is different when I let windows
manage ICM.
Any ideas?
Thanks,
Evren
