This paper looks at the basic properties of impressions which pictures give and estimates the impressions. The method used to estimate the impressions, synthesizes each impression separately. Each impression is obtained from the elements of a picture. To examine the validity of this method, impressions of a color image and a contour image which are produced from an original picture are measured separately by using the SD method. An impression of an original picture is predicted from impressions of the color and contour image. The results of this experiment show that the impressions of an original picture related to color (i.e. vividness and brightness) are expressed by two impressions from a color image and a contour image.
