Author Topic: Google image rights metadata  (Read 253 times)

PatrickMarq

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Google image rights metadata
« on: May 21, 2020, 11:45:20 AM »
As I’m working on a new website, I found this article:
Add image rights metadata
Google supports the IPTC metadata format to manage image copyright information.

So as I’m already using a script to modify the EXIF data, I would like to add these tags also.
IPTC fields creator, copyright notice that’s no problem but credit line, and the Licence url I have no idea what to use.

Thx
Patrick

StarGeek

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Re: Google image rights metadata
« Reply #1 on: May 21, 2020, 12:19:20 PM »
As I’m working on a new website, I found this article:

Was there a link you forgot to add?

Quote
Google supports the IPTC metadata format to manage image copyright information.

Is this about Google Photos?  Because Google Photos doesn't show extensive metadata.

Quote
IPTC fields creator, copyright notice that’s no problem but credit line, and the Licence url I have no idea what to use.

You can find the IPTC Core definitions here.  If you look at the Credit Line entry, it will tell you the name for the older IPTC IIM/Legacy under the IIM Specs and the XMP entry under XMP Specs.  In both cases, the tag name is Credit, so you could write either IPTC:Credit or XMP:Credit or both.

The url was a bit harder to track down.  It's part of a Licensor structured tag.  I couldn't find it in exiftool at first, until I saw that the IPTC page entry I linked said it was part of the "structured PLUS … property".  It appears on the Exiftool PLUS tags page.  So the tag name to set that would be LicensorURL.
Troubleshooting hints:
* When posting, include your OS, Exiftool version, and type of file you're processing (MP4, JPG, etc).
* Double all percent signs (%) in a Windows batch file.
* If your GPS coords are negative, make sure and set the GpsLatitudeRef and GpsLongitudeRef tags correctly.

PatrickMarq

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Re: Google image rights metadata
« Reply #2 on: May 21, 2020, 02:09:25 PM »
Yes indeed, I forgot the link:
https://support.google.com/webmasters/answer/9150868?hl=en

It’s something that’s in beta.

Thank you for all the trouble refine it for me
Thx
Patrick

StarGeek

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Re: Google image rights metadata
« Reply #3 on: May 21, 2020, 02:18:15 PM »
Ah, interesting.  I'll have to look into this to see how it works.  That's definitely showing more data than Google Photos.
Troubleshooting hints:
* When posting, include your OS, Exiftool version, and type of file you're processing (MP4, JPG, etc).
* Double all percent signs (%) in a Windows batch file.
* If your GPS coords are negative, make sure and set the GpsLatitudeRef and GpsLongitudeRef tags correctly.

PatrickMarq

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Re: Google image rights metadata
« Reply #4 on: May 22, 2020, 12:52:47 PM »
It took me some searching but I think I have all the fields:
Just need to test it.

-iptc:credit=xxx
-creator=Xxx
-xmp:copyright="All rights reserved
-xmp:copyrightstatus="protected" ';
-xmp-xmprights:marked="true" ';
-LicensorURL="https://www.
-xmp:WebStatement="https://www. -> to show in Lightroom
-xmp:UsageTerms="https://www.

Alan Clifford

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Re: Google image rights metadata
« Reply #5 on: May 23, 2020, 10:56:31 AM »
I'm confused.  https://support.google.com/webmasters/answer/9150868?hl=en  talks about iptc metadata not xmp.

In particular, it specifies iptc creator but
exiftool  -iptc:creator='Alan H. Clifford'  iptctest_1.jpg
Code: [Select]
Warning: Sorry, iptc:Creator doesn't exist or isn't writable

StarGeek

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Re: Google image rights metadata
« Reply #6 on: May 23, 2020, 11:04:51 AM »
I'm pretty sure that when it says IPTC, it means IPTC Core, of which XMP-dc:Creator is a part of (technically, part of the Dublin Core).  The Creator entry on the IPTC website shows both the XMP and IIM tags for this entry.

As the XMP tags gain greater use, I've seen more and more references to IPTC actually meaning IPTC Core.
Troubleshooting hints:
* When posting, include your OS, Exiftool version, and type of file you're processing (MP4, JPG, etc).
* Double all percent signs (%) in a Windows batch file.
* If your GPS coords are negative, make sure and set the GpsLatitudeRef and GpsLongitudeRef tags correctly.

Alan Clifford

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Re: Google image rights metadata
« Reply #7 on: May 23, 2020, 11:26:14 AM »
Just realized that the IIM name for creator is by-line.

https://iptc.org/std/photometadata/specification/IPTC-PhotoMetadata#creator

Alan Clifford

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Re: Google image rights metadata
« Reply #8 on: May 23, 2020, 11:59:57 AM »
-xmp:UsageTerms="https://www.

I have usage terms as a string, "For consideration only.  No reproduction without prior permission", rather than a URL.  I have no recollection of where I found this phrase.


PatrickMarq

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Re: Google image rights metadata
« Reply #9 on: May 23, 2020, 03:10:36 PM »
You can check here if the image is correct tagged:

https://getpmd.iptc.org/getiptcpmd.html

StarGeek

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Re: Google image rights metadata
« Reply #10 on: May 23, 2020, 03:13:40 PM »
Heh, from that page…
   A key element of this service is ExifTool, a software developed by Phil Harvey
Troubleshooting hints:
* When posting, include your OS, Exiftool version, and type of file you're processing (MP4, JPG, etc).
* Double all percent signs (%) in a Windows batch file.
* If your GPS coords are negative, make sure and set the GpsLatitudeRef and GpsLongitudeRef tags correctly.

Phil Harvey

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Re: Google image rights metadata
« Reply #11 on: May 25, 2020, 09:08:16 AM »
Heh, from that page…
   A key element of this service is ExifTool, a software developed by Phil Harvey

:)
...where DIR is the name of a directory/folder containing the images.  On Mac/Linux, use single quotes (') instead of double quotes (") around arguments containing a dollar sign ($).