iPhoto 5.03
iPhoto 5.03
- Subject: iPhoto 5.03
- From: Chris Murphy <email@hidden>
- Date: Fri, 15 Jul 2005 14:18:13 -0600
Not only is the bogus tagging problem fixed, but it appears as though
iPhoto 5.03 leaves images tagged with editing/intermediate space
profiles (matrix-based profiles) unscathed as well. I get a
conversion only in two instances based on limited testing so far:
1. Untagged images. The assumed source is the display profile,
destination is Generic RGB, image is tagged with Generic RGB. EXIF
color space info is still ignored. (An option to ignore or not ignore
this data would be nice.)
2. Tagged images using table-based profiles. The source is the
embedded profile, first destination is something like sRGB without
flare (it's not Generic RGB, and it isn't exactly sRGB either but
really close to it), and the second destination is the original
source. Thus the iterated image has the original profile embedded. It
would be better if this intermediate space were ProPhoto RGB, or at
least something a lot bigger than whatever is being used now because
this normalizing conversion is causing a net loss of quality for
images that have scanner or camera profiles embedded in them. For
images of this type, I do still see an on-screen color shift.
Nevertheless this is great for people using ProPhoto RGB, and likely
also Adobe RGB (1998), for their images, because now they aren't
converted to another space at all in the 1/2 dozen ProPhoto RGB test
images I've used thus far.
Chris Murphy
Color Remedies (TM)
www.colorremedies.com/realworldcolor
-------------------------------------------------------------
Co-author "Real World Color Management, 2nd Edition"
Published by PeachPit Press (ISBN 0-321-26722-2)
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