SRGB Convert / Discard or Use?

My Dimage Z6 only records in JPEG / sRGB, without other options. My
question is when opening, and working within PS, am I better to convert the
image to ADOBE RGB, Discard embedded or use the embedded profile.
I probably ought to add that my output is usually print, though sometimes
will post on a website.
Thanks in advance for your comments / opinions.

Felice

Re: sRGB Convert / Discard or Use?

On Wed, 31 May 2006 17:23:39 +0200, nomail@please.invalid (Johan W.
I agree, lots of bally-hoo about not much at all.
BINGO. this is it in a nutshell. WHEN is Microsoft EVER going to get
this right, or, is this even poosible? Sometimes "color management" on
a PC, with several different programs and peripherals running, might
as well be called color manglement.


RC Moonpie

Re: sRGB Convert / Discard or Use?

AdobeRGB is indeed the better color space, but *in this case* it doesn't
make a difference, because your starting point is sRGB. You can convert
images from sRGB to AdobeRGB, but that will only give you 'sRGB colors
in AdobeRGB space'. It's like putting one gallon of water in a two
gallon container. You'll still only have one gallon if you do that. The
rest is empty space.
--
Johan W. Elzenga johan<<at>>johanfoto.nl
Editor / Photographer http://www.johanfoto.nl


Nomail@please.invalid (Johan W. Elzenga)

Re: sRGB Convert / Discard or Use?

No, you didn't understand that correctly. You should use your monitor
profile for your monitor, and your printer profile for your printer.
sRGB is an abstract color space, a so-called 'working space'. That's the
kind of color space you use in Photoshop to edit your images. But your
monitor and your printer have their own color spaces, and these spaces
are described in the monitor profile and the printer profile(s).
I mainly work on a Macintosh system. I do have a PC as well, and I
installed that control panel on it, but it find it of limited use. The
problem is that color management is still application-based in Windows,
not system-based like on the Macintosh. It's also confusing, because it
calls sRGB and AdobeRGB profiles of the class 'Monitor', which is
absolutely wrong.
--
Johan W. Elzenga johan<<at>>johanfoto.nl
Editor / Photographer http://www.johanfoto.nl


Nomail@please.invalid (Johan W. Elzenga)

Re: sRGB Convert / Discard or Use?

I understood that whatever profile you use for your cameras images (and I
understand sRGB is as good as anything for home/digital camera use!) you
should use the same profile for your monitor and eventually your printer (so
what you see is what you get??)
I downloaded a free colour profile management windows add-on from M'soft,
you may find it useful?
I would be interested in your opinion Johan.
http://www.microsoft.com/windowsxp/using/digitalphotography/prophoto/colorcontrol.mspx


Harry Limey

Re: sRGB Convert / Discard or Use?

Thank you everyone for your responses. I had thought that Adobe RGB would
be a better profile for printing. Is everyone saying that it really doesn't
make a difference?
the
sometimes


Felice

Re: sRGB Convert / Discard or Use?

Correct.
Converting will indeed not add any extra information, so converting is
NOT the thing to do. You would actually loose some information if you
convert to AdobeRGB. Just use 'Keep embedded profiles'.
You won't be 'working with two profiles at the same time'. You will only
be working in sRGB which is the thing to do in this case. An image can
only have one color space and one profile, not two at the same time.
What you mean is that PS 8 and 9 can have two images open at the same
time which have different color spaces, but that is not relevant in this
case.
--
Johan W. Elzenga johan<<at>>johanfoto.nl
Editor / Photographer http://www.johanfoto.nl


Nomail@please.invalid (Johan W. Elzenga)

Re: sRGB Convert / Discard or Use?

Keep the embedded profile. There is nothing to gain in converting from
sRGB to AdobeRGB, because it will just place the same colors in a larger
space. And there is certainly nothing to gain with discarding the
profile.
--
Johan W. Elzenga johan<<at>>johanfoto.nl
Editor / Photographer http://www.johanfoto.nl


Nomail@please.invalid (Johan W. Elzenga)

Re: sRGB Convert / Discard or Use?

...
Hi.
My understanding is that converting an sRGB tagged image to Adobe RGB will
not produce any benefit, because the Palette has already been restricted and
the conversion will not add any extra information.
If an Image is already tagged then Converting is the process to use, but
"use the embedded" will work fine, because Ps 8 & 9 can work in 2 Profiles
at the same time.
Roy G


Roy G

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