I installed Picasa yesterday and applied names to all my modern family photos… just to see how it worked. It definitely became ‘smarter’ with more data points.
Unfortunately, Picasa saves the Face data as XMP metadata and Gramps only has Exif Metadata tools.
Since it is my standard test file, I added Picasa ID’s & face rectangles for this 1913 Family reunion JPEG picture.
(The picture was originally laid out for a Cascading Style Sheet toy. Where the image lived in a webpage frame that was half the width of the image. So it normally showed only the left half. But on a mouse hover, the frame origin slide to the right and showed just the right side.)