Re: Scanmate 11000 / Color Quartet and ICC profiles
Re: Scanmate 11000 / Color Quartet and ICC profiles
- Subject: Re: Scanmate 11000 / Color Quartet and ICC profiles
- From: Nick Wheeler <email@hidden>
- Date: Tue, 15 May 2001 10:50:32 -0400
on 5/15/01 4:06 AM, Josef Fallnhauser at email@hidden wrote:
>
Where does CQ look for the scanner profile? The one which is setup in the CQ
>
Scan software or the one which is placed in the colorsync setup as Input
>
profile?
Josef:
CQ looks for the SCANNER profile that you choose in the CQ Scan
"Preferences" dialog box. It looks for the MONITOR Profile that you indicate
in the Colorsync control panel. You control whether or not the CQ
application itself uses the Scanner profile to create the Preview scan by
checking DTRC on or off. CQ will always look to the Colorsync setting for
the Monitor display. I believe that CQ actually "calls" colorsync as a
subroutine for this.
DTRC On means CQ will use the scanner profile when creating the Preview
Scan. DTRC Off means CQ will create a raw preview scan. Try just doing a
Preview with DTRC on and then off - you will see the difference. It is very
important to quit and restart both CQ and CQ Scan when you change the
settings. This is true throughout these applications. It is similar to
Photoshop and Plug ins, these settings get loaded at startup.
>
So, when the DTRC is set "off" there is no CM on, that means, it does not
>
matter which profiles are further set up in the next lines. But where are
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this DTRC located, the software uses, when the DTRC is set "on"?
>
With which profile then the preview is shown up?
I am not sure what you mean by "further set up in the next lines". If you
mean the setups in the "Scan Setup" dialog box in the Color Quartet (CQ)
application itself, the answer is I don't really know. I never tested that
question.
By the way - I am not at all critisizing your English. Hey, if I could write
clearly you would have understood me the first time around. And English is
supposedly my native language. In fact if the documentation for all this
stuff were written more clearly we would all be better off!
>
Or do you throw all the profiles in the ICC dialog window away, set the DTRC
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to "off" and than you make an internal it8 calibration?
>
In this case, as I already said, it was not possible to use this generated
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scanner profile in another application e.g. Photoshop as source profile.
>
This internal generated profile seems not to be a correct ICC-file.
Josef, I really do not remember the internal calibration procedure that
well. I stopped doing it a long time ago. I think I remember not liking the
results very much. I agree with you it does not seem to be a correct icc
profile by current standards. But that may just be a matter of correcting
the profile created by CQ with Apple's "Profile First Aid" or Steve Upton's
application "Color Think".
>
>I use David Tobie's recommendations for setting up the it8 scan and I save his
>
>scan settings as my site color.
>
Could I get this recommendations?
Best to get this info directly from David, but here is my interpretation
specific to CQ.
First start CQScan and turn DTRC OFF. Then quit and re start CQScan.
Now start the CQ application itself and do a preview scan. In the Scan setup
dialog box make sure you do the scan as a 2 megabyte RGB file. I set the
destination RGB space as none.
What David recommends is that at this point you do some minimal correction
to the scan. So go ahead and set the lightest it8 patch to RGB values of
about 5 - 5 - 5 and the darkest to about 252 - 252 - 252. I also auto
neutral one of the neutral gray patches. This is actually all I do. I
believe David also recommends doing an overall lightening or darkening of
the scan if it is very far off.
The beauty of CQ is you can now save these settings as a "Color History".
These settings can then be recalled as a "Site Color" if they are stored in
the Color Quartet Application Folder on your hard disk.
Once you have done this 2 megabyte RGB TIFF scan you can then use a
profiling application like ScanOpen, CompassProfile, WYZIWYG and I think
also Monaco EZColor to create your scanner profile. I personally like what I
get with ScanOpen best but believe me that does not mean much. I have never
even tried EZ Color - yet I have heard many good things about it.
>
As I already told you, I prefer to work with one it8 calibration (for the
>
colors) and do all the other settings like highlight, shadow, and neutralize
>
- individually set on each scan - already in the scan software?
Yes, I believe that is a good system. Make sure to select the new profile
you created in CQ Scan Preferences and turn DTRC ON. Quit and restart.
Then make sure you have saved your Color History - I use the name "Tobie
Settings" and choose that as your "Site Color" in the Scan Setup Dialog box.
Then use your normal scanning procedures.
You will find over time certain settings useful for the Saturation tool, the
Gray Balance, Curves tool etc. Save these in the CQ application folder and
they will be available to you in the drop down lists in those tools dialog
boxes. It is very useful.
I wish I spoke and wrote German as well as you do English! Feel free to ask
any more questions - I may not be able to get back to you for a couple of
days though.
Best wishes Josef,
Nick Wheeler