Where can I find raw data for Apple photo's face recognition
In Mojave and earlier: Photos library (right click) &gt; Show package contents &gt; Resources &gt; Media &gt; Face. The sub-folders within the Face folder contains thumbnails of all faces. Additional data about them can be found in Database &gt; photos.db but you'll need DB Browser for sqlite or similar program. Face related data is in a table named RKFace, several other tables named RKFace..., and elsewhere.
In Catalina and later, use the same approach as above but the folder names are different. You'll be querying Database &gt; photos.sqlite, and looking at tables such as ZDETECTEDFACE, ZFACECROP, and basically any other with &quot;face&quot; in it.
Be very careful not to modify, delete or move anything when you open Photos library.photoslibrary.