## 3 Results
### Rain Conditions  
Tables 11 and 12 show the luminance values under the conditions of rainfall of 20 mm/h and 50 mm/h. Table 13 provides the average contrast values of the pedestrian-targets against the background for each detailed condition under rainfall conditions. As shown in Table 14, when calculated based on Weber Contrast, the 3000 K color temperature compared to the 6000 K color temperature under the 20 mm/h rainfall condition showed a contrast difference of \(-3.33\%\) to 13.05% based on the white pedestrian target. In terms of the black pedestrian target, the contrast difference was \(-6.80\%\) to 15.09%, and the maximum contrast was 15.09% at 12.5 m of the black pedestrian target. \begin{table}
\begin{tabular}{c c c c} \hline \hline \multirow{2}{*}{**Weather Condition**} & \multirow{2}{*}{**Target Position**} & \multicolumn{2}{c}{**Contrast Ratio (C\({}_{6000}\) K/C\({}_{3000}\) k)**} \\ \cline{3-4}  & & **White Target** & **Black Target** \\ \hline \multirow{3}{*}{Fog 200 m} & 5 m & 14.71 & 43.86 \\ \cline{2-4}  & 12.5 m & 34.84 & 27.63 \\ \cline{2-4}  & 25 m & 3.7 & \(-0.96\) \\ \hline \multirow{3}{*}{Fog 100 m} & 5 m & 106.21 & 313.25 \\ \cline{2-4}  & 12.5 m & 7.28 & 1.54 \\ \cline{2-4}  & 25 m & \(-20.55\) & \(-30.02\) \\ \hline \multirow{3}{*}{Fog 40 m} & 5 m & \(-54.24\) & \(-67.37\) \\ \cline{2-4}  & 12.5 m & \(-52.64\) & \(-51.73\) \\ \cline{2-4}  & 25 m & \(-24.42\) & \(13.37\) \\ \hline \hline \end{tabular}
\end{table} 
Table 10: 3000 K contrast ratio compared to 6000 K in fog conditions. \begin{table}
\begin{tabular}{c c c c} \hline \hline \multirow{2}{*}{**Weather Condition**} & \multirow{2}{*}{**Target Position**} & \multicolumn{2}{c}{**Corl**} & \multicolumn{2}{c}{**Average Contrast of ROIs**} \\  & & **Temperature** & **(L\({}_{\text{Target}}-L_{\text{Background}}\))/L\({}_{\text{Background}}\))** \\ \cline{2-4}  & & & **White Target** & **Black Target** \\ \hline \multirow{3}{*}{Fog 200 m} & 5 m & 3000 K & 45.69 & 2.98 \\  & 6000 K & 39.83 & 2.07 \\ \cline{2-4}  & 12.5 m & 3000 K & 30.88 & 4.32 \\  & 6000 K & 22.90 & 3.38 \\ \cline{2-4}  & 25 m & 3000 K & 8.67 & 1.98 \\  & 6000 K & 8.36 & 2.00 \\ \cline{2-4}  & 5 m & 3000 K & 21.50 & 1.10 \\  & 6000 K & 10.43 & 0.27 \\ \cline{2-4}  & 12.5 m & 3000 K & 7.88 & 0.94 \\  & 6000 K & 7.34 & 0.92 \\ \cline{2-4}  & 25 m & 3000 K & 1.72 & 0.39 \\  & 6000 K & 2.16 & 0.56 \begin{table}
\begin{tabular}{c c c c} \hline \hline \multirow{2}{*}{**Coplor Temperature**} & \multirow{2}{*}{**Target Position**} & \multirow{2}{*}{**Color Temperature**} & \multicolumn{2}{c}{**Average contrast of ROIs**} \\  & & & **(I\({}_{\text{Target}}-\text{L}_{\text{Background}}\))/I\({}_{\text{Background}}\))** \\ \cline{3-4} \cline{5-5}  & & & **White Target** & **Black Target** \\ \hline \multirow{4}{*}{Rain 20 mm/h} & 5 m & 3000 K & 50.81 & 4.59 \\  & & 6000 K & 52.56 & 4.24 \\ \cline{2-5}  & 12.5 m & 3000 K & 59.22 & 6.22 \\ \cline{2-5}  & & 6000 K & 52.39 & 5.41 \\ \cline{2-5}  & 25 m & 3000 K & 57.38 & 5.85 \\  & & 6000 K & 59.36 & 6.27 \\ \hline \multirow{4}{*}{Rain 50 mm/h} & 5 m & 3000 K & 6.32 & 0.33 \\  & & 6000 K & 5.59 & 0.24 \\ \cline{1-1} \cline{2-5}  & 12.5 m & 3000 K & 4.05 & 0.38 \\ \cline{1-1} \cline{2-5}  & 12.5 m & 6000 K & 3.31 & 0.37 \\ \cline{1-1} \cline{2-5}  & 25 m & 3000 K & 0.64 & 0.08 \\ \cline{1-1} \cline{2-5}  & 6000 K & 0.89 & 0.09 \\ \hline \hline \end{tabular}
\end{table} 
Table 13: Average contrast of ROI in rain conditions. \begin{table}
\begin{tabular}{c c c c} \hline \hline \multirow{2}{*}{**Color Temperature**} & \multicolumn{2}{c}{**Target Distance**} \\ \cline{2-3}  & 5 m & 12.5 m & 25 m \\ \hline \multirow{2}{*}{Rain 20 mm/h} & 5 m & 12.5 m & 25 m \\ \cline{2-5}  & 5 m & 12.5 m & 25 m \\ \hline \hline \end{tabular}
\end{table} 
Table 11: Comparison of luminance by target distance and color temperature (rain 20 mm/h).