色彩在我們的生活中扮演了很重要的角色，因此許多研究者皆致力於探討景觀色彩對人們景觀偏好之影響。然而，色彩的量化一直是此領域研究中最主要之問題。本研究嘗試利用Lab色彩空間作為表色方法將景觀色彩進行量化，評估景觀畫面中明度、色相、彩度及色彩變異量等色彩屬性變項對人們自然景觀偏好之影響。本研究選取自然景觀照片作為刺激物，測量受測者對一系列自然景觀照片之景觀偏好，同時利用軟體分析每張照片在Lab色彩空間中之各個色彩變項數值。研究結果顯示景觀偏好與Lab色彩空間中之L值成負相關、與a值、a值之標準差、b平方值及彩度值成正相關，表示人們比較偏好明度較低、色相偏紅、偏黃或偏藍且紅－綠變化多、色彩鮮豔或對比強烈之自然景觀。

Colors play an important role in our daily life, so the effect of landscape color on people's landscape preference has long been discussed. However, the main problem found in related studies is the quantification of color. The purpose of this study is to evaluate the effect of landscape color on people's preferences for natural landscape. Lab color space is used to quantify color qualities, including Hue, Brightness, Chroma and the variance of color. A series of natural landscape pictures are used as stimuli in this study, the preference of each picture is evaluated by the participants and the color qualities of each picture in Lab color space is measured by software. The result shows that people's landscape preference is negative correlated to L, but positive correlated to a, aS.D., b2, and Chroma in Lab color space. According to the results, people tend to prefer natural landscape which is darker in Brightness, more red, yellow or blue in Hue, more colorful in Saturation and more red-green variances in color.