Re: Indesign dropping profiles on placing?
Re: Indesign dropping profiles on placing?
- Subject: Re: Indesign dropping profiles on placing?
- From: Klaus Karcher <email@hidden>
- Date: Sun, 23 Jan 2011 11:02:53 +0100
Eric Nunn wrote:
[...] Indesign [...] shows the image profile as Document RGB, but
when alt clicking to load into Photoshop, the file loads tagged
with Adobe 1998. [...]
If I save a copy from PS and place that file, the link info shows
that the image is Adobe1998, and the colour appearance matches PS.
Any ideas?
Klaus Karcher wrote:
Most likely the original image does not contain an ICC profile but
just an Exif colorspace tag [...] (1=sRGB, 2=AdobeRGB,
65535=Uncalibrated)
I'm not sure about CS5, but at least until CS4 there is no way to
tell InDesing to honor the Exif colorspace tag. You can only provide
for consistency across [CS applications] by telling Photoshop "to
make the same mistake" as InDesign (i.e. to ignore the Exif tag) --
and this is probably not what you want.
Update: retrieving trustworthy colorspace information from Exif data
seems to be even more fragile than I expected. See
<http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/EXIF.html>:
--------8<--------
*ColorSpace*
1 = sRGB
2 = Adobe RGB
65535 = Uncalibrated
(the value of 2 is not standard EXIF. Instead, an Adobe RGB image is
indicated by "Uncalibrated" with an InteropIndex of "R03")
*InteropIndex*
'R03' = R03 - DCF option file (Adobe RGB)
'R98' = R98 - DCF basic file (sRGB)
'THM' = THM - DCF thumbnail file
-------->8--------
... so maybe Adobe should consider to ignore the Exif ColorSpace tag by
default also in Photoshop in future releases. This way there is at least
consistency across all CS applications. The other way to accomplish
consistency would be to make *all* CS applications aware of Exif
ColorSpace informations and to synchronize the setting weather to honor
or ignore them with Bridge's Color Settings files.
Klaus Karcher
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