[Openicc] Gutenprint team requests CM-off for a print queue be provided as a maintained engineering facility.

Chris Lilley chris at w3.org
Fri May 11 06:09:14 PDT 2012

On Thursday, May 10, 2012, 2:34:06 PM, Graeme wrote:

GG> Richard Hughes wrote:
>>  People printing targets are in the
>> 0.00001% of our userbase, and I'm not sure we want GUI controls for
>> that small number of people. Can't we just document a terminal command
>> that would turn off all printer CM completely?

Richard, at LGM we had a conversation where you said you wanted CM to be as simple as possible for most people and I said that was fine as long as the simplicity did not prevent people who needed higher quality from doing their work.

Not being able to switch off colour management on a given queue means not being able to profile the device on that queue, so seems to fall into that category.

Imagine if there was manadatory full-screen colour management and the colorhug had to measure a screen and then find the profile that was used and try to undo what it did, to get a measurement ...

GG> Without the ability to print targets though, the whole print
GG> chain is worthless since there's no way of color profiling it.


GG> Making it super difficult to profile means that people who are
GG> inclined to do so, will simply will give up. And that means
GG> that profiles won't be made to let the other 99% of users
GG> get good color. 

Or it means that inaccurate profiles will be made because the patches were generated and printed incorrectly.

GG> So the end result is that people either
GG> have to put up with bad color on your system, or move over to
GG> a system that does let them (or the experts they rely on) get
GG> what they want.

This is well put.

If the concern is confusing users, then (on a GUI) hide it in 'advanced options' or guide them with 'you will not normally need this, unless you are profiling the printer'.

 Chris Lilley   Technical Director, Interaction Domain                 
 W3C Graphics Activity Lead, Fonts Activity Lead
 Co-Chair, W3C Hypertext CG
 Member, CSS, WebFonts, SVG Working Groups

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