hugin-devs team mailing list archive

[Yuv <709561@xxxxxxxxxxxxxxxxxx>]

adding a couple of arguments to src/hugin1/hugin/config_defaults.h is
not difficult and the panoply of available tags (which I believe are
CaSe SeNsItIve) are listed at http://search.cpan.org/~exiftool/Image-
ExifTool-8.25/lib/Image/ExifTool/TagNames.pod

ICC_Profile seems to be a no brainer although somebody will have to test
if it is enough to just specify ICC_Profile in the list or if the
individual tags must be listed, and if so which ones do we need?

http://search.cpan.org/~exiftool/Image-
ExifTool-8.25/lib/Image/ExifTool/TagNames.pod#ICC_Profile_Tags

There is however a problem.  Highly unlikely, but what if the images to
be merged have different color profiles?  blindly copying the first
image's profile is no good idea.  I actually had a few such cases, where
I mixed a traditional panorama with a superimposed historical
photographic scan.

XMP I am not sure what would be the benefit.

http://search.cpan.org/~exiftool/Image-
ExifTool-8.25/lib/Image/ExifTool/TagNames.pod#XMP_Tags

I don't see any point copying the XMP exif which is just a repeat of
other exif data.  Then much of the data is related to the conversion
parameters of the individual photo in the RAW converter.  This, again is
not applicable to the whole panorama.

After spending a few minutes reading through the linked documentation my hypothesis is that:
- XMP has no useful information
- in terms of color correction it would make sense for Hugin to convert all input images to a single color space; and then write the information of that profile into the output.

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https://bugs.launchpad.net/bugs/709561

Title:
  Hugin doesn't copy icc colour profiles to output

Status in Hugin - Panorama Tools GUI:
  New

Bug description:
  (reported by celsius@xxxxxxxxxxxxx)

  Hugin copies lots of metadata from the first photo in the project to
  the final output, this is from src/hugin1/hugin/config_defaults:

  #define HUGIN_EXIFTOOL_COPY_ARGS                   "-ImageDescription
  -Make -Model -Artist -WhitePoint -Copyright -GPS:all -DateTimeOriginal
  -CreateDate -UserComment -ColorSpace -OwnerName -SerialNumber"

  It seems that it should also have these args:

    -icc_profile
    -xmp

  In particular, if there is no icc profile then the enblend -c option
  has no effect.