Datacolor User to User Support Group.

-- 
Nathan Gutman

On Jan 31, 2009, at 10:48 AM, Nathan Gutman wrote:

> When projecting make projector.icc the default profile.
> When editing on computer make monitor.icc the default profile.
>
> Would it make sense to make default the projector.icc profile when  
> editing to help me to see on my monitor how would my photo look when  
> projected?

No, this would not create a cross-simulation of one device on the  
other, it would just show the wrong color on screen. It would be  
possible to emulate output to the projector with Photoshop's  
softproofing functions, but its not practical, as projection is a very  
relative thing, where the eye is adapted to the projection conditions,  
so if the softproof showed your whitepoint as being, say, pink, that  
would be literally true, but not effectively true, since the eye would  
adapt, and make that pink wall white again. So I would not recommend  
attempting to correct for a projector, its an inferior display, and  
simply using the profile for it is about as good as its going to get...

C. David Tobie
Global Product Technology Manager
Digital Imaging & Home Theater
CDTobie@...

First (just as with monitors) start by carefully choosing a good one.  
Unlike shops in Tokoyo, which have a pitch black room full of  
functional projectors foe users to compare, testing projectors before  
buying in the US may be limited to checking out ones that people you  
know happen to own.

Beyond that, adjusting the hardware controls to an optimal state is  
handy, but in digital mode there tends to be little you can adjust.

Next would come the projection situation. Pitch black, with no  
competing lights or bright objects, to produce good blacks, good  
shadow detail, good gradients, and to make sure the projector "owns"  
your eyes white balance.

After that it's a matter of profiling the projector, being sure that  
profile and it's LUTs are in use, and showing precorrected images  
using a color managed application. This does NOT include PowerPoint.

C. D. Tobie
Global Product Technology Mngr.
Digital Imaging & Home Theater
Datacolor.com
CDTobie@...

On Jan 31, 2009, at 5:18 PM, Nathan Gutman <nzgutman@...>  
wrote:

> Thanks for the explanation...
> What would then be the best method to ensure that an image displayed  
> on my calibrated monitor is relatively faithfully displayed when  
> using a calibrated projector?
> Nathan
>
> C D Tobie wrote:
>>
>>
>> On Jan 31, 2009, at 10:48 AM, Nathan Gutman wrote:
>>
>> > When projecting make projector.icc the default profile.
>> > When editing on computer make monitor.icc the default profile.
>> >
>> > Would it make sense to make default the projector.icc profile when
>> > editing to help me to see on my monitor how would my photo look  
>> when
>> > projected?
>>
>> No, this would not create a cross-simulation of one device on the
>> other, it would just show the wrong color on screen. It would be
>> possible to emulate output to the projector with Photoshop's
>> softproofing functions, but its not practical, as projection is a  
>> very
>> relative thing, where the eye is adapted to the projection  
>> conditions,
>> so if the softproof showed your whitepoint as being, say, pink, that
>> would be literally true, but not effectively true, since the eye  
>> would
>> adapt, and make that pink wall white again. So I would not recommend
>> attempting to correct for a projector, its an inferior display, and
>> simply using the profile for it is about as good as its going to  
>> get...
>>
>> C. David Tobie
>> Global Product Technology Manager
>> Digital Imaging & Home Theater
>> CDTobie@...
>>
>>
>>
>> <mime-attachment.gif>
>>
>>
>> Datacolor
>> www.datacolor.com/Spyder3
>>
>>
>
> -- 
> Nathan Gutman
>

> and showing precorrected images
> using a color managed application. This does NOT include PowerPoint.


IME many people don't realise it does NOT include quite a lot of programs 
that are used for slideshows, such as Proshow, Proshow Gold, PicturesToExe, 
and Picasa.

Programs that do slideshows and ARE color-managed include IviewMediaPro, 
ExpressionMedia, LightRoom, Proshow Producer.

Neither list is meant to be all-inclusive, just ones that I know about.

Bob Frost.

--------------------------------------------------
From: "Cdtobie" <CDTobie@...>

On Feb 3, 2009, at 1:28 PM, Bob Frost wrote:

>>
>> and showing precorrected images
>> using a color managed application. This does NOT include PowerPoint.
>
>
> IME many people don't realise it does NOT include quite a lot of  
> programs
> that are used for slideshows, such as Proshow, Proshow Gold,  
> PicturesToExe,
> and Picasa.
>
> Programs that do slideshows and ARE color-managed include  
> IviewMediaPro,
> ExpressionMedia, LightRoom, Proshow Producer.
>
> Neither list is meant to be all-inclusive, just ones that I know  
> about.


Thanks for extending on this thought. My goal was simply to point out  
the most obvious offender, which seems to account for the majority of  
non-color managed presentations. I tend to use Lightroom, Bridge, and  
Keynote for various types of presentations. All three are color  
managed, at least to the degree of doing a conversion from the tagged  
space of the image to the display profile, which is the key to color  
correct presentations. Color Management for printing is not as well  
covered, with Lightroom still not qualifying as a properly color  
managed printing application, since it offers only two intents  
(lacking my preferred intent entirely), and has Adobe's Black Point  
Compensation permanently applied (whether you want it or not).

C. David Tobie
Global Product Technology Manager
Digital Imaging & Home Theater
CDTobie@...

On 4/02/2009 Bob Frost wrote:
> Programs that do slideshows and ARE color-managed include 
> IviewMediaPro, ExpressionMedia, LightRoom, Proshow Producer. Neither 
> list is meant to be all-inclusive, just ones that I know about.

Can we add Adobe Acrobat (including the free Reader) to that useful list?

Peter Marquis-Kyle

Depending on how you got your files onto PDF format in the first  
place, yes, they should be displayed via a correct profile conversion.  
But garbage-in, garbage-out can apply to PDF files. If you don't use  
properly tagged RGB files, and a color managed PDF building  
application in the first place, then we can't blame Reader for not  
displaying accurately.

C. D. Tobie
Global Product Technology Mngr.
Digital Imaging & Home Theater
Datacolor.com
CDTobie@...

On Feb 3, 2009, at 7:09 PM, Peter Marquis-Kyle <peter@... 

 > wrote:

> On 4/02/2009 Bob Frost wrote:
>> Programs that do slideshows and ARE color-managed include
>> IviewMediaPro, ExpressionMedia, LightRoom, Proshow Producer. Neither
>> list is meant to be all-inclusive, just ones that I know about.
>
> Can we add Adobe Acrobat (including the free Reader) to that useful  
> list?
>
> Peter Marquis-Kyle
>
>
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