Photo apps can help you find objects in your pictures, but they don't tell you whether or not those images are worth sharing. For now, that's still up to you. If Google has its way, though, AI may serve as an art critic. It just detailed work on a Neural Image Assessment (NIMA) system that uses a deep convolutional neural network to rate photos based on what it believes you'd like, both technically and aesthetically. It trains on a set of images based on a histogram of ratings (such as from photo contests) that give a sense of the overall quality of a picture in different areas, not just a mean score or a simple high/low rating.