ImageObject properties

[saumier]

Feedback from Frederic:
culturecreates/artsdata-data-model#137 (comment)

• "disambiguatingDescription" was a required property in the WO. While it may feel a bit redundant in the context of this project, it would be useful if Artsdata ever scaled out the practice of converting image URLs into ImageObjects.
• "usageInfo" was only a suggested property in the WO, but I feel strongly that we should use it in this project and in any other conversion of image URLs into ImageObjects. Please see my comment in GitHub - Representing ImageObject in event structured data for live performances artsdata-data-model#137 (reply in thread) - and the draft Image Policy at https://github.com/culturecreates/artsdata-data-model/blob/master/doc/fr/image_policy.html.md. This image policy takes into consideration concerns raised by evenko. They will see this as a positive contribution to the project. If additional development fees are required to fully publish the policy and to add the property, please edit the Work Order.

To do:

• Add to ImageObject the property schema:disambiguatingDescription with "Image of <name of the main entity in which the ImageObject is nested>, sourced from <website domain name from the url of the main entity in which the ImageObject is nested>."

• Add to ImageObject the property schema:usageinfo https://kg.artsdata.ca/doc/image_policy

[dev-aravind]

@saumier The properties are now added to the ImageObject.

[saumier]

@dev Capacoa has updated the url for the image-policy with a dash instead of underscore.

New url https://kg.artsdata.ca/doc/image-policy

Please update the url in the ImageObject

[dev-aravind]

@saumier This is up in artsdata, you can test it here.