In this study, using a physiological measure and a subjective measure, stress reduction effect of views of city parks are examined. Salivary amylase is adopted as the physiological measure, and SD-method is used as the subjective measure. 21 still videos were taken in several city parks. In the experiment, 18 subjects were shown these videos in the laboratory to measure the salivary amylase levels before and after viewing each image. Principal component analysis method extracted three main components such as beauty, complexity and elegance. It is shown that highest rated videos do not always decrease in amylase, and videos not only including 'the three landscape elements', but also having simplicity and spaciousness decrease in amylase.
