| Title |
Consistency Evaluation of Color Planning through CNN-based Landscape Analysis - Focused on Living Areas in Busan Metropolitan City |
| Authors |
장현지(Jang, Hyun-Ji) ; 이희정(Lee, Hee-Chung) |
| DOI |
https://doi.org/10.38195/judik.2026.04.27.2.111 |
| Keywords |
도시경관; 도시색채; 생활권; CNN; CIELAB; 색채 유사도 Urban Landscape; Urban Color; Living Area; CNN; CIELAB; Color Similarity |
| Abstract |
This study aims to quantitatively analyze the urban landscape colors at the living-area scale in Busan Metropolitan City and to examine the consistency between the representative color palettes of the Busan Urban Color Plan (2009) and actual landscape colors. While existing urban color plans are generally structured around zone-based management systems, quantitative investigations of how planned colors correspond to the landscape characteristics experienced at the living-area scale have been limited. Ten living areas in Busan were selected as study sites, and Google Street View images were collected within district unit planning zones. Using a CNN-based semantic segmentation approach, non-urban landscape elements such as vehicles, roads, and sky were excluded, while major streetscape components including buildings and vegetation were extracted. The extracted color information was converted from RGB to the CIELAB color space, and color differences between planned and observed colors were calculated using the ΔE?? metric to assess consistency at the living-area scalelevel. To enhance stability in relative comparison among living areas, RobustScaler was applied to normalize the distribution of ΔE?? values. The results reveal variations in consistency between designated planning zones and actual landscape colors across different living areas. Some areas exhibited relatively similar color tendencies to the planned zones, whereas others showed noticeable discrepancies. These findings indicate that partial consistency and structural differences coexist between zone-based color planning and the landscape characteristics experienced at the living-area scale. This study contributes by providing a quantitative examination of color planning consistency and offers foundational data for refining spatial units and management strategies in urban color planning. |