“PostgreSQL Anonymizer is an extension that hides or replaces personally identifiable information (PII) or commercially sensitive data from a PostgreSQL database.”

Now with Image Blurring feature:

“But our new Image Blurring capability preserves visual data for testing while protecting privacy:

SECURITY LABEL FOR anon ON COLUMN user.photo
IS ‘MASKED WITH FUNCTION anon.image_blur(photo,5.0)’;”

https://www.postgresql.org/about/news/postgresql-anonymizer-21-blurring-images-3061/