Re: embedding colorsync profiles in digital images
Re: embedding colorsync profiles in digital images
- Subject: Re: embedding colorsync profiles in digital images
- From: email@hidden
- Date: Thu, 20 Nov 2003 08:49:20 EST
In a message dated 11/19/03 6:01:42 PM, email@hidden writes:
>
All I can say is it works pretty well for me on non-Artisan monitors
>
I have tried. Not perfect, mind you. Converting files to sRGB prior
>
to displaying them in apps that ignore profile tags often gives
>
pleasing results on both Mac and PC monitors. The same is not true of
>
Adobe RGB for example. Explanation, please?
>
Well, they both have the same gamma and whitepoint, so that isn't the video
card gamma not matching the assumed image gamma. Its the primary definitions,
and the resulting color saturation that make AdobeRGB files look bad in sRGB
circumstances... and it takes more than a video card gamma definition to fix
that, it requires either converting the file from AdobeRGB to sRGB in a savvy
application, or displaying in an application that reads the assigned space tag,
and converts on the fly from that to the monitor profile.
With the upcoming "AdobeRGB monitor" we keep hearing about, the inverse would
be true, non-color managed apps would need AdobeRGB files to look
approximately right, while color managed apps would be necessary to display sRGB files
reasonably. Not a good situation on Windows, where browsers are not color
managed!
None on which disagrees with your statement that calibrating monitors
attached to a Mac to 2.2 and using sRGB as a default is a reasonable thing to do
these days, I agree that it is; certainly all of my monitors, Mac or PC, are
calibrated at 2.2, as I don't care to loose those extra levels of gray by
stretching from one gamma to the other. And anything destined for the web gets
converted from AdobeRGB to sRGB, a conversion that Photoshop's Save for Web function
should take care of.
C. David Tobie
Product Technology Manager
ColorVision Inc.
email@hidden
www.colorvision.com
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