Replaced the temporary grayscale filter with automatic face anonymization. Uploaded images are now scanned for faces, and every detected face is pixelated. I also improved detection accuracy to reduce missed faces by tweaking a bunch of stuff for a while and adding more functionality to my face detection like running the image at multiple sizes. A lot of my time was also spent making the pixelated effect look good. I first went for only blurring the faces but now the face is pixelated along with a smooth transition into the surrounding image making the effect look pretty good. Right now images with large crowds are correctly blurred, including people who are far away or appear very small in the image.