Datacolor User to User Support Group.

I've printed both the 225 patch color target and the Extended gray
target.  How do I measure both targets so they're included in one
profile?  I can only measure one target or the other and at the end of
measuring I don't see an option to measure the second one.  I've
looked at the help but can't find the answer.

Thanks,

Tom Husband

>I've printed both the 225 patch color target and the Extended gray
>target. How do I measure both targets so they're included in one
>profile? I can only measure one target or the other and at the end of
>measuring I don't see an option to measure the second one. I've
>looked at the help but can't find the answer.
>
>Thanks,
>
>Tom Husband
>

I'd posted a description of this weeks ago, so I'll email you a copy
off-list so as not to repeat it here.


-- 
David Miller
Senior Software Developer, Digital Color Solutions
ColorVision

OK I think I m getting there.  I realize now that you have to measure the gray target and then bring it into the color target.  You can t create a gray profile

David, Could you please repost your description or list the message 
number.  I can't seem to find you original the description to 
mention.  Thanks.
Matthew Kraus

--- In colorvision_group@yahoogroups.com, David Miller <dm2363@...> 
wrote:
>
> >I've printed both the 225 patch color target and the Extended gray
> >target. How do I measure both targets so they're included in one
> >profile? I can only measure one target or the other and at the end 
of

> >measuring I don't see an option to measure the second one. I've
> >looked at the help but can't find the answer.
> >
> >Thanks,
> >
> >Tom Husband
> >
> 
> I'd posted a description of this weeks ago, so I'll email you a copy
> off-list so as not to repeat it here.
> 
> 
> -- 
> David Miller
> Senior Software Developer, Digital Color Solutions
> ColorVision
>

>David, Could you please repost your description or list the message
>number. I can't seem to find you original the description to
>mention. Thanks.
>Matthew Kraus
>

Sure, why not...:-) Here we go:

First, print one of the color targets (either 225 or 729 patches; I'd suggest
starting with 225, to keep things simple, then try again with 729 later if you
like).

Then print the Extended Grays target. If you do the 225 colors and the 238
extended grays, you'll have two sheets of letter size targets ready to measure.

It's extremely important that you print both of these on the same paper, using
the same driver settings.

Then, on the Read Patches screen, measure each one of them. Before you step
forward into that screen, you need to set "which" kind of target you're going
to be measuring on the Select Target screen. So: Select Target: 225; click
Next; Save Measurements To...; then Read Patches. Step back to Select Target:
Extended Grays; click Next; Save Measurements To...; Read Patches again. Now
you have measurements saved for colors, and for grays.

Visually check them, too, for accuracy. Open up the Target window for each,
switch to Measured mode so you can see only the measured colors, drag on the
lower right corner to make the window even larger, then visually compare to
your target print. You should see a reasonably close match. Look for "bad"
measurements, which (if they exist) will typically be too-light patches that
stand out among their neighbors in the darker regions; they should be easy
to spot. Remeasure any bad ones (arrow keys to locate the patch, then measure
again).

Now that you've got these, you can Build.

The Extended Grays are used as a supplement to the colors; but you don't build
a profile straight from them; that why if you select them in the measurement
list, you can't step forward to the Build screen. (We have to let them show
UP in that popup, though, because you need a way to measure and preview and
possibly remeasure them).

Instead, this is what you do:

- Select your COLOR measurements in the main popup on the Read Patches screen.

- Once you do this, another checkbox and popup (smaller) will show up below
that, and your Extended Grays measurements will be in THAT popup. (All
Extended Grays measurements that are in your Data:PRO folder will show up in
this supplementary popup below the main popup). Use that smaller popup to
select "which" extended grays measurements you want to use; and then CHECK
the checkbox if you want them to actually be USED when you build the profile.
(If the checkbox isn't checked, then when you build, only the color measurements
will be used when you build the profile).

- To summarize: to build a profile with Extended Grays used as part of the
profiling process:

- Measure a color target and a grays target

- Select the color target in the main popup

- Select the extended grays target in the supplementary popup that appears
below it; and also CHECK the "Use extended grays" checkbox.

Best regards,


-- 
David Miller
Senior Software Developer, Digital Color Solutions
ColorVision

--- In colorvision_group@yahoogroups.com, "Tom Husband" <tom.husband@...> wrote:
>
> I've printed both the 225 patch color target and the Extended gray
> target.  How do I measure both targets so they're included in one
> profile?  I can only measure one target or the other and at the end of
> measuring I don't see an option to measure the second one.  I've
> looked at the help but can't find the answer.
> 
> Thanks,
> 
> Tom Husband
>

Tom,

See David Miller's workflow, as explained in message #1637.

Good luck.

Thanks Thomas.  David was kind enough to send the workflow to me off line so I m on track now. David, thanks for the quick response.  I really appreciate it.