Re: Applying a profile to a scanned image file ...
Re: Applying a profile to a scanned image file ...
- Subject: Re: Applying a profile to a scanned image file ...
- From: Klaus Karcher <email@hidden>
- Date: Thu, 10 Feb 2011 10:23:58 +0100
Wheeler, Barry wrote:
Now they ave found that using the Apple Automator to run “Apply
ColorSync Profile to Images” on TIFFs caused them to fail the JHOVE
validation process. Running the color profile change in Photoshop
seems to cure that.
My question is what is going on? Why do the ColorSync profile
applications fail and the Photoshop change cure it?
It's hard to tell what's going on without an example. Can you upload
example files (before/after processing with Automator or Photoshop)?
Did you try to Apple's command line tool "sips" instead of Automator to
embed the profiles (e.g. "sips -E /path/to/profile.icc image.tif")?
Are you sure that the TIFF files are valid (except for the missing
profile) before you run Automator?
In contrast to embedding just a profile with Automator or sips, opening
an saving a file in Photoshop is a quite complex process. It triggers
many file modifications and possible "repair actions": Photoshop parses
the file (and tries to interpret it even if it broken or not fully
spec-compliant), it rotates the data if the TIFF contains a rotation
flag, adds e.g. XMP Metadata and an Document UUID, (re-)creates
Thumbnails and Previews and rewrites the whole file (maybe even in a
different byte order or compression scheme).
Klaus Karcher
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