This paper suggests that the induction field in vision can predict goodness and strength of impressions which we evaluate for images. Recently, the induction field has been focused on as a method to evaluate sensibility. Sensibility means feelings with mind for image or sound. Many research activities using induction field make efforts to evaluate sensibility of images. However, these previous methods strongly depend on type of image. There is no basic evaluating method using induction field for sensibility. This paper proposes complexity of induction field as an indexe of goodness, and potential energy as strength of impressions. To confirm these indexes psychological experiments were done. It is indicated that these measurements using induction field can evaluate goodness and strength of impressions of images.