# From Pigments to Pixels: A Comparison of Human and AI Painting
## 3 Results
### Technique: The Emotional Impact of AI Paintings on the Participants  
On the level of technique, in the stepwise multiple regression analysis of the affect relating to the theme of Home Sweet Home, color brightness, line precision, and line fluency  
Figure 4: The percentage of participants who correctly judged each painting as either AI or human.  
Figure 5: The corresponding error (misidentification) rates.  
were treated in order and the joint explained variance was 43.1%. On the level of technique, in the multiple regression analysis for emotions relating to the theme of Home Sweet Home, for color brightness the results were \(\beta=0.373\) (\(t=7.868\), \(p<0.001\)), for line precision the results were \(\beta=0.277\) (\(t=5.066\), \(p<0.001\)), and for line fluency the results were \(\beta=0.126\) (\(t=2.202\), \(p<0.05\)), indicating that these three variables had significant predictive power in terms of the affect relating to the theme of Home Sweet Home. The equation used in the regression analysis was as follows:  
\[\text{Home Sweet Home technique level}=0.373\text{ }^{*}\text{ color brightness}+0.277\text{ }^{*}\text{ line precision}+0.126\text{ }^{*}\text{ line fluency} \tag{1}\]  
On the semantic level, in the stepwise multiple regression analysis of the affect relating to the theme of Home Sweet Home, happy and lively and steady and distinct were treated in order and the joint explained variance was 76.8%. On the semantic level, in the multiple regression analysis for emotions relating to the theme of Home Sweet Home, for happy and lively the results were \(\beta=0.729\) (\(t=22.576\), \(p<0.001\)) and for steady and distinct the results were \(\beta=0.208\) (\(t=6.447\), \(p<0.001\)), indicating that these two variables had significant predictive power in terms of the affect relating to the theme of Home Sweet Home. The equation used in the regression analysis was as follows:  
\[\text{Home Sweet Home semantic level}=0.729\text{ }^{*}\text{ happy and lively}+0.208\text{ }^{*}\text{ steady and distinct} \tag{2}\]  
The technical factors that generated an emotional response relating to the theme of Home Sweet Home were bright colors and precise and fluent lines; this result may have been influenced by the emotions implied by the expression \"Home Sweet Home\". Although people have various associations towards the concept of the family, the expression \"Home Sweet Home\" is clearly a positive concept, so it was natural for the participants to associate it with bright colors and lines that are precise and fluent. As for the failure of brushstroke to have much impact in this respect, this may have been due to the relative subtlety of brushstroke in contrast to the more obvious qualities of color and line. On the semantic level, happy and lively and steady and distinct were found to be the key factors. People associate a happy family with feelings of joy and relaxation as well as strong and orderly personal relationships and these are the characteristics the participants expected to find in the paintings on the levels of technique and semantics.  
Therefore, this study believes that although \"Home Sweet Home\" is a relatively abstract concept, and everyone has a different understanding of it, it does not affect people's understanding of this concept. Additionally, \"color\" and \"line\" can be regarded as the external form; people feel the deep content through these elements.