[Openicc] [Gutenprint Color Management] Will my prints look good?

[Kai-Uwe Behrmann]

Am 26.06.11, 14:27 -0400 schrieb Robert Krawitz:
> On Sun, 26 Jun 2011 19:41:10 +0200 (MEST), Kai-Uwe Behrmann wrote:
>> Am 25.06.11, 18:17 +0200 schrieb edmund ronald:
>>>
>>> So why don't we do a persona analysis:
>>>
>>> -  David who uses Gutenprint to drive a legacy big printer attached to a
>>> Mac. This is job-related.
>>>
>>> -  Peter is a techie who is also a hobby photographer; he likes using Linux.
>>>
>>> - Jane is an 18 year old in Greece, whose parents bought her a $150 Ubuntu
>>> Netbook instead of a Mac because of the bad economy :)
>>
>> good idea. I will use your persons below.
>>
>> David and Jane appear to me as very similiar in respect to ICC mode
>> usage. They want a certain and relyable colour state and not fiddle
>> with anything once the setup is done. The system should be forgiving
>> and stabilise itself for them.
>>
>> Peter is quite different. He is like a old school printer who does
>> all the manipulation by hand. It is nice to let him do so. But
>> similiar to today printing processes it should be clear that manual
>> tweak break ICC stuff. Peter can do that, but David and Jane shold
>> not be affected UI wise.
>>
>> The overlapping part of David and Peter is target printing/ICC less
>> printing. If they find a possibility in the UI, to assign a ICC
>> profile to a given freely manipulateable calibration state, then I
>> guess both are well served.
>
> Because the ICC profile is a good start, but Peter wants to tweak the
> results (maybe he wants the print to be a bit more saturated -- his
> aesthetic preference).

Thats reasonable.

>>> On Sat, Jun 25, 2011 at 5:33 PM, Robert Krawitz <rlk at alum.mit.edu> wrote:
>>>> On Sat, 25 Jun 2011 16:32:44 +0200 (MEST), Kai-Uwe Behrmann wrote:
>>>>> Am 25.06.11, 15:05 +0200 schrieb edmund ronald:
>>
>>>>> ... but not at cost of becoming ambiguous. Either the printing is in
>>>>> ICC mode and colour calibration related options are grayed out or it
>>>>> is work in free style mode.
>>>>
>>>> No way.  We shouldn't be absolutely preventing users from doing
>>>> something that may be useful to them.  Having a warning or something
>>
>> Free style mode is different to ICC mode. Free style mode allows to
>> do everything.
>
> That's OK, as long as the ICC profile can also be applied in freestyle
> mode.

>>>> is fine, but absolutely preventing users from overriding settings
>>>> because of the possibility of ambiguity or because *some* users
>>>> *might* get confused and do something wrong, is simply being
>>>> gratuitously restrictive.
>>
>>>>> So they do not want tweaks of any kind,
>>>>> but a clear way to let a colour guru like you say: "These are the
>>>>> colours from this driver for your printer."
>>>>
>>>> Users don't *have* to make any changes.  Have a check box labeled
>>>> "Allow override (advanced users only!)" or the like that they have to
>>>> select in order to make any changes from the predefined settings.  If
>>
>> As far as I see thats a UI problem. "Allow override (advanced users
>> only!)" is not that easy to handle UI wise. What to expect if a user
>> has overriden and wants later to go back to a well defined state. Is
>> simply unchecking the box enough to remove all changes made? Or will
>> than uncheck of "Allow override (advanced users only!)" just freeze
>> the changes?
>
> Actually hide (not just gray out) the other options if the override
> box is not checked, and then don't apply the changes.  The override
> tweaks should only be applied if the box is checked.

Seems a good behaviour for the checkbox. Still the print dialog is then 
some kind of calibration editor, which is IMO not ideal fitting into a 
ICC workflow.

>> For Dave and Jane this will be pretty unclear and feel like a
>> pitfall.  To be sure they need every day to freshly select the ICC
>> profile and then can start to work. For Jane this is clearly too
>> much to request.
>
> Why do they need to do that?  As long as they never check the override
> box, nothing changes.

I would like to let David and Jane see one ICC profile name and done.

Consequently to meet Peters demand, he had to attach his new calibration 
state to the ICC profile. That way he can store his many edits. The prize 
is to first unselect the ICC profile, then do the calibration/options 
editing and reassign the ICC profile to the new calibration state.

kind regards
Kai-Uwe Behrmann
-- 
developing for colour management 
www.behrmann.name + www.oyranos.org