Question surounding colorspace

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I am not asking for a lession about ICC profiles. I am just curious why when I have my 20D set to A rgb, upload my jpegs to my computer via a card reader and open them in windows picture viewer it says the color representation is uncalibrated? I was shooting in Raw+ jpeg mode but why would that make a difference, shouldnt the raw just be raw and the jpeg get the colorspace I set applied? Thanks.

[picture-this]

I just tried again in a rgb in just jpeg mode, says uncalibrated again. Then tried in S rgb and it indicates Srgb then. Also photoshop recognized the a rgb So I am guessing the windows fax viewer just doesn't recognize wider colorspaces.

[tim]

I'll guess that windows has no idea about color spaces.

[PacAce]

I just tried again in a rgb in just jpeg mode, says uncalibrated again. Then tried in S rgb and it indicates Srgb then. Also photoshop recognized the a rgb So I am guessing the windows fax viewer just doesn't recognize wider colorspaces.
When you shoot sRGB, the sRGB profile is embedded in your JPG file. However, if you shoot ARGB, the profile is not embedded in the JPG file. The computer or whatever non-color managed viewer will assume that the image is sRGB without a profile. The colors will look washed out when displayed on the monitor.

[cmM]

I'll guess that windows has no idea about color spaces.
Pretty much.... Windows has no color management system :rolleyes:

[UncleDoug]

Pretty much.... Windows has no color management system :rolleyes:

Granted I'm in a Mac environment, but I know several peple who run Windows and color management is more complicated than in a Mac world, but it is there.

[cmM]

Granted I'm in a Mac environment, but I know several peple who run Windows and color management is more complicated than in a Mac world, but it is there.
Well of course there is, it needs to know what colors those photons on the monitor are, but it's rather rudimentary, especially relative to the needs of photo editing or other color sensitive stuff.

[UncleDoug]

Well of course there is, it needs to know what colors those photons on the monitor are, but it's rather rudimentary, especially relative to the needs of photo editing or other color sensitive stuff.

I'd love for someone to elaborate on this, ICM in Windows.
The info I've seen is a couple of years old. Basically that you set the monitor profile and all other CM operations are taken care of at the application level, not the OS level, as some things are done in OS X.

IF this is the case with the newer Windows systems, why would anyone in their right mind who was serious about color choose to work in a Windows environment?(I'm hiding behind 43 feet of titanium right now. :D)

[Jesper]

Pretty much.... Windows has no color management system :rolleyes:That's not entirely true - Windows does have a colour management system (and programming interface), but it doesn't work automatically. If the programmer of an application didn't write his/her application to make use of the colour management system (like the majority of Windows applications), the application will not display images correctly, taking the colour space etc. of the image into account.

I don't know how it works on the Mac - whether the operating system does the whole colour management thing in the background without the need for applications to be aware of it.
I'd love for someone to elaborate on this, ICM in Windows.
The info I've seen is a couple of years old. Basically that you set the monitor profile and all other CM operations are taken care of at the application level, not the OS level, as some things are done in OS X.

IF this is the case with the newer Windows systems, why would anyone in their right mind who was serious about color choose to work in a Windows environment?(I'm hiding behind 43 feet of titanium right now. :D)The old information you saw is still valid. And about your last question: if you're using fully colour managed applications such as Photoshop, it will work perfectly.

[UncleDoug]

The old information you saw is still valid. And about your last question: if you're using fully colour managed applications such as Photoshop, it will work perfectly.

That is what I thought. :D But wanted some conformation from someone in the Windows world.