Re: New EyeOne ruler and soft case
Re: New EyeOne ruler and soft case
- Subject: Re: New EyeOne ruler and soft case
- From: Marco Ugolini <email@hidden>
- Date: Wed, 02 Nov 2005 17:15:56 -0800
In a message dated Wed, Nov 2, 2005 6:43 AM, Steve Kale wrote:
> Unless I am mistaken the steps involved in profile creation are rather
> limited and straight forward. There are only a few things to screw up. One
> just has to be careful to do those few things correctly.
True, the steps are few, but they are crucial, and one can certainly get
even those few steps wrong. Unlike some people think, idiocy has nothing to
do with it: one has to build experience.
I certainly made my share of mistakes at the beginning (and probably do
still): it took me a while to understand that certain printers can be
linearized, and, if so, should be; or how to print a test chart correctly;
or the importance of cleaning inkjet nozzles before profiling; or even how
to determine which test chart is the right one for a given printer; or which
monitor calibration package is the best one (basICColor display, no doubts);
and so on and so forth.
The devil is indeed there, smirking, tucked deep inside the details.
> Take monitor calibration. You need to decide on just three things: white
> point, max luminance and gamma. The only fiddly bit (depending on your
> monitor controls - woeful on Apple displays) is setting luminance.
Depending on your display, you may have one that allows you to adjust the R,
G, and B signals, or another one with separate controls for brightness and
backlight (like the Sony SDM-HS95); others have a separate LUT inside the
display itself, separate from the on in the display card, and sometimes
accompanied by DDC controls; etc.
As you can see, reality always throws a wrench into the best-laid plans.
> Then it's just a case of ensuring that you place the device on the monitor
> correctly and make sure your screen saver doesn't kick in. Other than that,
> the question comes down to which package (device and software) does the job
> better than others which is a whole different kettle of fish.
That, plus those other little things I mentioned above.
> I'm not trying to be smart but there aren't many other variables to play with
> unless you get into the realms of influencing what stimulus is sent to a
> device, ie which sample observations are used to estimate the gamut. The
> latter would likely require more knowledge than would be learnt in a 1-2 day
> seminar.
"Sample observations"? You mean what assortment of color patches are sent to
the display by the profiling software? You don't want to mess with that.
That is the realm of the color science behind the scenes. That's where the
software has to be left alone to do its thing and prove its worth.
> I suspect a seminar on profile creation will emphasize very simple
> methodical steps known to many attendees already. Likely the more
> interesting part of such a seminar would be educating people on when and why
> colour management breaks down - providing a better understanding of the
> limits of its ability and the notion that it is only as good as its weakest
> link.
I am all for seminars on profile creation. The IPA regularly holds Webinars
on color management topics (<http://www.ipa.org/webinars/index.php3>).
And these seminars should tackle profile editing as well...just long enough
to tell people to stay away from it!
No, just kidding...
Best regards.
--------------
Marco Ugolini
Mill Valley, CA
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Colorsync-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden