What does Mona Lisa's smile mean?

There are four emotions in a smile. With the help of computer emotion recognition software, scientists found that Mona Lisa's smile contains four emotions: 83% happiness, 9% disgust, 6% fear and 2% anger. This software first makes a template of "general expressions" based on the faces of young women in the database, and then identifies human emotions by comparing key facial features such as the radian of wrinkles around lips and eyes with this template. At present, this software can recognize six basic emotions: happiness, surprise, anger, disgust, fear and sadness.

Professor Thomas Huang, who participated in this research, admitted why Mona Lisa had these contradictory emotions at the same time. "In order to interpret Mona Lisa's smile more accurately, we need to discuss the real meaning behind the subtle expressions of human faces with psychologists and artists."

Cynthia McVey, a psychologist at the University of Glasgow in England, tries to analyze the ambivalence of Mona Lisa from a psychological perspective. "Da Vinci wanted to paint her, which made Mona Lisa very happy. But she is a little disgusted with being painted by an old man. The reason why she is angry is that she has been sitting there for a long time, but Da Vinci has not finished painting. " Professor Donald Sasson of the University of London in the United Kingdom believes that Leonardo da Vinci deliberately hides the true feelings of the model, thus leaving a huge room for imagination.

Leonardo da Vinci believed that human beings were the most sacred. The human body is the most beautiful image in nature. His many measurements have proved that the proportion of all parts of the human body is an integer ratio, so the human body presents the most harmonious beauty, which is called "sacred proportion". He said: "Whoever does not respect life is not worthy of life." "Mona Lisa" is exactly what he praised the beauty of human beings with a real female smile and called for humanity.

Mona Lisa's right hand is considered to be the most beautiful hand in the history of world art. Although the scientific and advanced modern photography technology is superb, if we compare this hand with modern photography, we can still see that it has a sense of volume, weight and vitality. It seems that people can hear the beauty of music and feel the joy of Mona Lisa at that moment in the almost completely empty middle finger gap. It is difficult for modern photography to record this inner charm.