On Apr 13, 2005, at 3:57 AM, Godfrey DiGiorgi wrote:
One thing: Be sure to find and set the option to embed a colorspace profile. I know sRGB images are supposed to be the "web default" but in my testing I have found that JPEGs with an embedded profile, on both Windows and Mac OS, display far more consistently even if they've been converted to sRGB.
I made this page last year when I got curious - it's similar to the testing you did. And similar to the quick page Rob just did :)
http://www.digistar.com/~dmann/profile_test/
Be aware that there are only two web browsers (that I know of) that actually support embedded colour profiles. Safari and Mac IE (which is now unsupported). This is entirely due to ColorSync.
Embedding your profile benefits me, a Safari user with a calibrated & profiled screen, but not many others. It does add slightly to the filesize so you might want to consider whether it's really worthwhile.
Converting from sRGB to the monitor's colour space for display is not a huge shift, as it "just so happens" that sRGB represents a gamut which is quite close to that of most monitors. This is by design, not by accident (don't get me started...). The upshot is that systems without colour management can get by without converting at all, and the colours will look close enough. Without a calibrated monitor this is all academic anyway.
That is why you should convert to sRGB before saving, whether you save with the embedded profile or not. Which is a long-winded way of saying exactly what you did :)
Cheers,
- Dave
http://www.digistar.com/~dmann/
