imgs.ai

In total, close to 2.5 million images have been indexed so far, with new datasets added regularly.

Rijksmuseum

Source: https://data.rijksmuseum.nl/object-metadata/download/
Size: 392636
Method: Public CSV
License: CC0, see https://www.rijksmuseum.nl/en/research/conduct-research/data/policy
Year added: 2020
Completeness: 100% (no errors at time of scraping)
Metadata: backlink to website
Type: remote (images pulled from server on demand)
Embeddings: VGG19, Poses, Raw, CLIP

Metropolitan Museum (Met)

Source: https://www.kaggle.com/metmuseum/the-met
Size: 358426
License: CC0, see https://www.metmuseum.org/about-the-met/policies-and-documents/open-access
Method: BigQuery, see https://cloud.google.com/bigquery/docs/quickstarts/quickstart-cloud-console
Details:
- SELECT bigquery-public-data.the_met.images.original_image_url, bigquery-public-data.the_met.objects.link_resource
- FROM bigquery-public-data.the_met.objects JOIN bigquery-public-data.the_met.images ON bigquery-public-data.the_met.objects.object_id = bigquery-public-data.the_met.images.object_id
Year added: 2021
Completeness: 99% (no errors at time of scraping, some URLs dead now)
Metadata: backlink to website
Type: remote (images pulled from server on demand)
Embeddings: VGG19, Poses, Raw, CLIP

Smithsonian

Source: https://github.com/Smithsonian/OpenAccess
Size: 136455
License: CC0, see https://www.si.edu/openaccess/faq
Method: Public JSON
Year added: 2022
Completeness: 99% (no errors at time of scraping, some files moved in the meantime)
Metadata: backlink to website
Type: remote (images pulled from server on demand)
Embeddings: VGG19, Poses, Raw, CLIP

Getty