Abstract
What object is extracted as a conspicuous object by human? What factors compose the conspicuity? Finding out the factors is important for the image understanding technology. Up to now the contrast extracted by DOG filters has been used as the conspicuity of the area. In this paper, the factors, such as the eccentricity in the visual field and the size of object, other than the contrast are examined. The availability of them are tested by the touch-screen and the following results: 1)the conspicuity decreases according to the eccentricity,2)it in the lower visual field is higher than the upper one,3)it in the right ward one is higher than the left ward one,4)we cannot find out the significant difference between the conspicuities in the upper-right one and in the lower left one, and 5)the conspicuity increases according to the size of object.
