Roger,
I was mad because I thought I was unable to create a custom target
having 30 neutrals with targen and I found why and this solve 2 problems
at ounce. First, thanks to M. Gill, I've manage to create my 30 neutrals
using targen. Then opened the target in PS and just to verify, I check
the patches values and nothing matches the data used to create the
files,( target.ti1).
The problem is Photoshop, 1 because it does something to the values it
read from the file and 2, because it does that, it makes Photoshop
useless to print targets.
Picture Window Pro read the file as is when no color management is
disable and each patch measures (it's rounded) exactly the numbers in
the ti1 file.
Gimp does an even better job if you consider it give you the Lab values
as well.
2 problems solved. Don't use PS to print targets created by Argyll and
probably any other system as well. I haven't test the other way around,
that is, creating a series of patch in PS to see if the values saved are
the same used to create them or something else, needs to be seen...
Don't forget to adjust the number of sample in your ti1 file.
Regards,
Yves
On 12/21/2019 1:32 AM, graxx@xxxxxxxxxxxx wrote:
I downloaded and installed GIMP but even though it allows choosing the page size from the Page Setup dialog, its Print dialog shows up just as Corel PhotoPaint, with no useful Preview :
https://1drv.ms/u/s!AkD78CVR1NBqkoc27LEV5w2-m9uXRQ?e=Zt1dvx
Breaks my heart…
/ Roger
*From:* argyllcms-bounce@xxxxxxxxxxxxx <argyllcms-bounce@xxxxxxxxxxxxx> *On Behalf Of *graxx@xxxxxxxxxxxx
*Sent:* December 21, 2019 12:19 AM
*To:* argyllcms@xxxxxxxxxxxxx
*Subject:* [argyllcms] Re: ACPU (Adobe Color Printer Utility)
Here is a screen capture showing the two printer’s gamuts:
https://1drv.ms/u/s!AkD78CVR1NBqkocyIa-UfFR3m1Y1qQ?e=Y2rM6X
It’s obvious that the left gamut (Paint.exe) is less “structured” than the one on the right (Photoshop).
Two conclusions.
I would not necessarily discard printing from Photoshop entirely as the shape of the gamut may accommodate certain images more than the “Paint.exe” gamut.
I have to find out, on Adobe’s forums, what is it that keeps them from “not managing color on the way out”?
/ Roger
*From:* argyllcms-bounce@xxxxxxxxxxxxx <mailto:argyllcms-bounce@xxxxxxxxxxxxx> <argyllcms-bounce@xxxxxxxxxxxxx <mailto:argyllcms-bounce@xxxxxxxxxxxxx>> *On Behalf Of *graxx@xxxxxxxxxxxx <mailto:graxx@xxxxxxxxxxxx>
*Sent:* December 20, 2019 11:04 PM
*To:* argyllcms@xxxxxxxxxxxxx <mailto:argyllcms@xxxxxxxxxxxxx>
*Subject:* [argyllcms] Re: ACPU (Adobe Color Printer Utility)
Printing from Microsoft Paint.exe on Windows 10 yields the same output as printing using ACPU. I don’t see a difference between the two outputs.
Interesting.
/ Roger
*From:* argyllcms-bounce@xxxxxxxxxxxxx <mailto:argyllcms-bounce@xxxxxxxxxxxxx> <argyllcms-bounce@xxxxxxxxxxxxx <mailto:argyllcms-bounce@xxxxxxxxxxxxx>> *On Behalf Of *graxx@xxxxxxxxxxxx <mailto:graxx@xxxxxxxxxxxx>
*Sent:* December 20, 2019 10:38 PM
*To:* argyllcms@xxxxxxxxxxxxx <mailto:argyllcms@xxxxxxxxxxxxx>
*Subject:* [argyllcms] ACPU (Adobe Color Printer Utility)
Finally found a moment to compare the output sent from Photoshop to the output sent from ACPU, and there’s a huge difference between the two, confirming what others reported here.
At first sight, I would say it’s as though ACPU turns the “driver” into a “CMY” printer, as opposed to an “RGB” printer? It’s plain to see.
Now which one is “better”?
I need to find an application outside of the Creative Cloud, to “compare”. Perhaps, on Windows, one of Microsoft’s imaging apps? On Windows 10, “Photos.exe”? Only problem (read “limitation”) is that Photos.exe does not allow accessing the printer “Preferences” from its printing dialog -- darn? (I have to set the Preferences from Settings > Devices > Printers & Scanners > myPrinter > Manage > Printing Preferences) Which adds an element of “uncertainty” to the process until, I guess, one learns to “trust” the settings to stick! Well, the output is not the same as from Photoshop and as from ACPU.
I have to keep looking… I don’t suppose Epson has its own “Printing Utility”?
And I don’t suppose the “problem” exists on the Mac or Linux?
/ Roger
