[argyllcms] Re: Do nothing Profile

  • From: <robert@xxxxxxxxxxxxxxxxxx>
  • To: <argyllcms@xxxxxxxxxxxxx>
  • Date: Fri, 18 Jul 2014 13:48:18 +0100

Hi Ben,

Again, with the HP driver, the only choice is sRGB or AdobeRGB, so it's not
possible to select the same profile.

What kind of works, but no doubt damages the image, is to convert from the
image (which has the perceptual mapping with the profile embedded) to the
workspace; then print from the workspace using Relative. I tried this with
an image and it prints OK, but I think there's some small loss of
saturation/contrast here and there.  Not an option.


-----Original Message-----
From: argyllcms-bounce@xxxxxxxxxxxxx [mailto:argyllcms-bounce@xxxxxxxxxxxxx]
On Behalf Of Ben Goren
Sent: 17 July 2014 23:56
To: argyllcms@xxxxxxxxxxxxx
Subject: [argyllcms] Re: Do nothing Profile

On Jul 17, 2014, at 3:43 PM, Robert@xxxxxxxxxxxxxxxxxx wrote:

> I can't imagine why Adobe has removed the No Color Management option.

This would be a good place to insert another "Adobe knows best" rant...but I
*think* you can probably do what you want by specifying the image profile as
the printer profile. That should result in a no-op conversion...but I could
also see it resulting in rounding errors if they actually do a bunch of
transforms to get back where they started, though the rounding errors might
not be visible in practice.

So, you might use Argyll to convert to your printer's profile and embed that
profile into the image. When printing, if you select the same profile for
the printer, unless Photoshop is *really* messed up, it *should* work. It
should (that word again) also work if the image is in ProPhoto and you tell
Photoshop that ProPhoto is your printer's profile.

...or, you can get a Canon imagePROGRAF printer and use Canon's Photoshop
plugin to send the data to the printer -- and, in so doing, you also send
the full 16-bit data to the printer.



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