Feature request: Smarter cropping with face detection

[sh95014]

Web:

IceCubes:

A relatively cheap way of improving this might be:

1. extract downloaded image from the LazyResizableImage
2. detect faces in the image using Vision.framework
3. take the average vertical position of the detected faces
4. set the frame(alignment:) of the image in defaultLinkPreview to whichever is closest to the average vertical position of faces (so .top in the example above)

Unfortunately I can't figure out step 1 and dropping to the lower-level code of Nuke seems like a disproportionate amount of work for the benefit. There's ImageRenderer but that's gross.

Filing here anyway in case anybody has other ideas.

[Dimillian]

When scrolling at 60/120 FPS not sure it's really worth it. Would sure be nice but not sure at all it's worth it indeed.

[sh95014]

Yeah, probably better with server support, rather than doing client-side detection.