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Calibrate with separate LUTs for color managed and non-color managed apps?

Calibrate with separate LUTs for color managed and non-color managed apps?

2012-10-18 by mberglun33

Hi,

I am considering buying a Spyder4Elite and two 27" wide gamut screens that do not have any sRGB emulation in them. My concern are the non-color managed applications, as they will look oversaturated on the screen. Is it possible to do the following:

- Calibrate the screen with a LUT that is used for non-color managed applications, and where the LUT is hence set up to emulate a "sRGB monitor"
- Have a separate LUT + profile for applications that are color managed

So in practice I would switch between the two LUTs in software whenever I intend to use either a color- or a non-color managed application.

So my question is, is it possible to generate the equivalent of an "sRGB emulation" LUT with the Spyder4Elite for use with the non-color managed applications, and also switch between that and the "proper" calibration without restarting the computer? I am running Windows 7.

Thank you for the help,
Mathias

Re: [datacolor_group] Calibrate with separate LUTs for color managed and non-color managed apps?

2012-10-18 by CDTobie

>>I am considering buying a Spyder4Elite and two 27" wide gamut screens that do not have any sRGB emulation in them. My concern are the non-color managed applications, as they will look oversaturated on the screen. Is it possible to do the following:

>>- Calibrate the screen with a LUT that is used for non-color managed applications, and where the LUT is hence set up to emulate a "sRGB monitor"
- Have a separate LUT + profile for applications that are color managed

The curves applied in the video card cannot emulate sRGB, or any other colorspace, they can only adjust gamma and gray balance. They are 1D LUTs, not 3D LUTs. 

>>So in practice I would switch between the two LUTs in software whenever I intend to use either a color- or a non-color managed application.

What non-color managed apps are missing is not the LUTs (which are global) but the ICC profile application which is the part that defines color saturation and hue, and can make sRGB files look right on a wide gamut screen. 

>>So my question is, is it possible to generate the equivalent of an "sRGB emulation" LUT with the Spyder4Elite for use with the non-color managed applications, and also switch between that and the "proper" calibration without restarting the computer? I am running Windows 7.

Not possible. Get an sRGB sized monitor, or a wide gamut display with an sRGB mode, if you want dumb apps to look smart. Or stick to smart (color managed) apps, though there are fewer of those on Windows, than on the Mac. 

C. David Tobie
Global Product Technology Manager
Imaging Color Solutions
Datacolor inc. 
cdtobie@...
www.datacolor.com
Show quoted textHide quoted text
On Oct 18, 2012, at 7:24 AM, "mberglun33" <mathias.berglund@...> wrote:

> I am considering buying a Spyder4Elite and two 27" wide gamut screens that do not have any sRGB emulation in them. My concern are the non-color managed applications, as they will look oversaturated on the screen. Is it possible to do the following:
> 
> - Calibrate the screen with a LUT that is used for non-color managed applications, and where the LUT is hence set up to emulate a "sRGB monitor"
> - Have a separate LUT + profile for applications that are color managed
> 
> So in practice I would switch between the two LUTs in software whenever I intend to use either a color- or a non-color managed application.
> 
> So my question is, is it possible to generate the equivalent of an "sRGB emulation" LUT with the Spyder4Elite for use with the non-color managed applications, and also switch between that and the "proper" calibration without restarting the computer? I am running Windows 7.

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