# Urban Color Perception and Sentiment Analysis Based on Deep Learning and Street View Big Data
## 3 Experiments and Results
### Analysis of Color Indicators and Emotional Perception
#### 3.3.2 OLS Regression Analysis Versus Geographically Weighted Regression Analysis
For example, coordinated colors are often used in healthcare settings to alleviate patients' emotions. To demonstrate the spatial variability of the regression coefficients in a more intuitive manner, the regression coefficients for color complexity and coordination with respect to each emotion score were visualized (Figures 19-24). The results indicated that color complexity and coordination exerted varying degrees of influence on different emotional perceptions in different types of city streets. In the western area of Lixia District, which is dominated by Quancheng Road, Lok Yuen Street, West Wenhua Road, West Qianfushan Road, and Shunqiao Road, as well as in of Lixia District's central area, color complexity has a positive effect on the perception of beauty. In the area dominated by Heping Road, Jingshi Road, Century Avenue, and Longteng Road, the color complexity has a significant negative effect on the perception of beauty, particularly in the area dominated by Jiefang Road and Heping Road. Conversely, in the area south of Jingshi Road, the color coherence has a positive effect on the majority of the area, especially in the area south of Jingshi Road, where this positive effect is the most significant. In the area south of Jingshi Road, the presence of color coordination has a favorable impact on the majority of the area, particularly in the area south of Jingshi Road. In the majority of locations within Lixia District, an increase in color complexity is associated with a reduction in boredom perception. This is particularly evident on Longding Avenue, where the lack of visual stimulation and monotonous environment contribute to this effect. In the area of Yanzi West Road and Kaiyuan Tunnel, the influence of color complexity is either weaker or even negative; the influence of color coordination on boredom perception demonstrates some spatial heterogeneity in Lixia District. In the area dominated by East Heping Road and East Jiefang Road, color coordination has a negative \begin{table}
\begin{tabular}{c c c c c} \hline \hline \multirow{2}{*}{**Emotional**} & \multicolumn{3}{c}{**Color Complexity**} & \multicolumn{3}{c}{**Color Coordination**} \\ \cline{2-5}  & \multicolumn{1}{c}{**Average Value**} & \multicolumn{1}{c}{**Standard**} & \multirow{2}{*}{**Average Value**} & \multicolumn{1}{c}{**Standard**} \\  & & & & **Deviation** & **Deviation** \\ \hline Beautiful & 0.024 & 0.192 & 0.058 & 0.025 \\ Boring & 0.155 & 0.098 & 0.004 & 0.015 \\ Depressing & 0.008 & 0.109 & \(-\)0.031 & 0.014 \\ Lively & \(-\)0.215 & 0.190 & \(-\)0.009 & 0.028 \\ Safe & 0.049 & 0.154 & 0.047 & 0.022 \\ Wealthy & 0.022 & 0.108 & 0.028 & 0.013 \\ \hline \hline \end{tabular} (a) The positive and negative signs of the GWR coefficients reflect the potential enhancing or inhibiting effects of color on emotion perception and (b) the standard deviation of the GWR measures the extent to which the different variables affect the differences in emotion perception, with a larger standard deviation indicating a greater difference in the degree of emotion perception.  
\end{table} 
Table 4: Coefficient statistics of emotion–color GWR analysis. effect on boredom perception. However, in the southeastern area, the positive effect of color coordination on boredom perception is most significant, because the color scheme in these areas is more harmonious and the environment as a whole gives people a pleasant visual experience, thus reducing boredom. In the majority of locations within Lixia District, an increase in color complexity is observed to positively influence the perception of repressed emotions, particularly in the area surrounding Heping Road. Conversely, in locations such as Shunqiao Road, Tourism Road, and Aoti Middle Road, the impact of color complexity is either diminished or even inverse, suggesting that the color complexity in these areas exerts a less pronounced influence on the perception of repressed emotions, and may even attenuate the sensation of suppression.