👉 In computer vision and machine learning, a "postface" refers to a specific face in an image or video that is not visible from the perspective of other faces. This can be useful for analyzing facial features or identifying individuals based on their appearance. For example, suppose we have an image with a person's face, but it looks like they are looking at some distance away rather than directly into our eyes. In this case, the postface could be considered as the face that is not visible from