Abstract:

How to consider “energy conservation and environmental protection” with “visual health” to generate low-power, visually beneficial maps (green maps) is a current research challenge. However, existing color generation methods for green maps consider limited factors and lack a unified generation algorithm framework. To address this issue, this paper constructs an extensible color generation framework for green maps based on summarizing the factors related to the use contexts of green maps. First, contextual factors of green maps are sorted out from three aspects: map content and form, user features, and display medium. Then, a framework comprising three generation methods—green maps color optimization, color recommendation, and color style transfer—is developed. Finally, representative sample maps are used to generate green maps tailored to different use contexts. Experimental results show that the proposed method can reduce power consumption by 60% and filter 60% of blue-light radiance without compromising color aesthetics or map-reading efficiency, while effectively alleviating visual fatigue. The approach enriches methods for generating green maps and is expected to facilitate their practical adoption.

Key words: green maps, energy consumption, visual fatigue, use context