Abstract
In order to make it possible to presume the unpleasantness invoked by shaking images, a system which estimates the unpleasantness degree was developed. The system implements a new analyzing algorithm based on the relationship between physical characteristics of images and unpleasantness. As a result of psychological estimation experiments with 32 shaking images, it was confirmed that differences of estimated unpleasantness degree between the developed system and the average subject are all less than the standard deviation of the experimental data.