A sketch artist, in other words, could create a portrait based not on an eyewitness account of a murder but on one or more grainy, off-angle, or partially obscured video stills of the alleged killer. Think of it as the hand-drawn equivalent of Hollywood-style image enhancement, which teases detail from a darkened pixelated face. A trained artist could perform image rehabilitation, recasting the face with the proper angle and lighting and accentuating distinctive features—close-set eyebrows or a hawkish, telltale nose. That drawing can then be used as a probe, and the automatic sketch ID algorithms will try to find photographs with corresponding features. Mirroring the artist’s attention to detail, the code focuses less on finding similar comprehensive facial maps and more on the standout features, digging up similar eyebrows or noses.