Feature summary (what you would like to be able to do and where):
In XMP metadata there is a field Iptc4xmpExt:DigitalSourceType. This field signifies the type of source of the image (from the list at https://cv.iptc.org/newscodes/digitalsourcetype/ e.g. Is it from a scanned negative, a screenshot, etc). Of particular note this is a way to signify that the image is AI generated.
Use case(s) (list the steps that you performed to discover that problem, and describe the actual underlying problem which you want to solve. Do not describe only a solution):
- Help people know the source type of an image.
Benefits (why should this be implemented?):
We already extract XMP metadata, so it seems low effort to add this. Downside is its unclear how much this is used in the wild. C2PA (T387075) is much more common, however that's an entirely different metadata format which would be a fair bit of work to add. We could do the IPTC property relatively easily. Certainly couldn't hurt.
For reference, test image: https://iptc.org/std/photometadata/examples/IPTC-PhotometadataRef-Std2024.1.jpg https://www.iptc.org/std/photometadata/documentation/userguide/images/generative-ai-example.jpg