Searching Google for Images Similar to a Specific Image

You can search Google for pictures similar to a given image, for plagiarism detection or to find people that look like you. Here's how I did a test: Google returned pictures of people that look like me (see figure 2 and 4) - actually, pictures that look like the picture I uploaded, whether they represent a human being or not, or whether they represent a man or a woman. . In this first test, the results reported by Google are based on metadata, despite my efforts to eliminate metadata in the picture in figure 1. Unfortunately, as you can see, the results are wrong. Google correctly figured out that figure 1 represents Vincent Granville, and indeed the first picture returned by Google is the one from figure 1.