Extraversion
Extraversion is a trait marked by engagement with the outside world. These type of users are correlated the highest out of all traits with colorful images (both colorfulness and high average RGB). Their photos do not have any correlation with the color attributes that make a photo aesthetically pleasing (contrast, saturation, lack of blur), with the exception of a positive correlation with sharpness. The number of static lines indicates a small positive correlation with emotion. In other composition features, extroverts are only correlated with the use of the rule of thirds.
Similar to conscientiousness, extraversion is largely related to the number of faces of the profile pictures, albeit extraverts slightly prefer images with more people. Different from all other personalities, extraversion is negatively correlated with the age of the presenting faces, which means that users either appear younger in their profiles or are photographed with other young(er) people.
With the strongest correlation compared to other personalities, extraverts have a small face ratio, perhaps caused by the multiple people present in the picture or showing of more of their body or environment. Extroverted people are also strongly associated with not displaying reading glasses, which was shown to be associated with introverts (Harris, Harris, and Bochner 1982). For facial expressions, extraverts display the same positive emotion trends as conscientious people, although weaker across the board.
(original)
Extraversion is a trait marked by engagement with the outside world. Extroverts have a small face ratio, perhaps caused by the multiple people present in the picture or showing of more of their body or environment. Their photos do not have any correlation with the color attributes that make a photo aesthetically pleasing, with the exception of a positive correlation with sharpness.
(summary)
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