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

Max Derhak Max.Derhak at onyxgfx.com
Fri May 11 06:24:33 PDT 2012

Why does the option need to be named "Turn off color management"?  Why don't we have an toggle between "Normal Printing" and "Printer Profiling ".  To the neophyte user this is obvious when  they aren't profiling the printer.  The fact that it turns off color management is in the background and is much less confusing.

Max Derhak
Senior Software Architect
max.derhak at onyxgfx.com

-----Original Message-----
From: openicc-bounces+max.derhak=onyxgfx.com at lists.freedesktop.org [mailto:openicc-bounces+max.derhak=onyxgfx.com at lists.freedesktop.org] On Behalf Of Chris Lilley
Sent: Friday, May 11, 2012 9:09 AM
To: Graeme Gill
Cc: Open ICC Color Managment
Subject: Re: [Openicc] Gutenprint team requests CM-off for a print queue be provided as a maintained engineering facility.

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 chain 
GG> 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 that 
GG> profiles won't be made to let the other 99% of users 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 have to put up with bad 
GG> color on your system, or move over to a system that does let them 
GG> (or the experts they rely on) get 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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