The purpose of this study is to understand characteristics of fluctuation in landscape quantitatively. In this paper, a method to analyze two dimensional monochrome image is proposed. And the usefulness of the method is examined by applying to 93 images of various landscapes. The results show that vertical fluctuation is affected by the composition of landscape and various landscapes can be classified into four groups by value of vertical fluctuation. Holizontal fluctuation is' affected by the detail of landscape. In addition, the influence of tree in landscape can be understood from the point of view of horizontal fluctuation.
