上海地铁海报现“六指美女”，被质疑用AI生成，广告方回应：如果确认存在问题，会第一时间修改替换

Core Viewpoint - A recent advertisement in the Shanghai subway featuring AI-generated images has sparked discussions among netizens, particularly due to the appearance of a model with six fingers, raising concerns about the quality and authenticity of AI-generated content [1][3]. Group 1: Public Reaction - Some netizens criticized the advertisements, suggesting that they appear to be AI-generated, describing the images as having an unnatural "plastic" quality and lacking aesthetic appeal [5][10][11]. - Observations were made about the unsettling nature of AI-generated human images, with one user noting that the combination of "baby-like skin" and wrinkles in the images was particularly eerie [7]. - The general sentiment among users indicates a belief that the advertising industry is using AI for the sake of it, compromising quality and artistic value in the process [11]. Group 2: Technical Aspects of AI-Generated Images - AI-generated images often exhibit typical flaws such as blurred facial details, harsh light transitions, and anatomical inaccuracies like the presence of six fingers or distorted hand positions [12]. - The concept of the "uncanny valley" is referenced, explaining that as AI-generated figures become more human-like, they can evoke negative reactions if they are not perfectly realistic, leading to discomfort among viewers [12]. - An example from the film "Alita: Battle Angel" illustrates this phenomenon, where the character's hyper-realistic features caused unease among some audience members due to slight deviations from human norms [14].