APPARATUS FOR DETERMINING AN IMAGE POSITION ON IMAGING MEDIA

An apparatus for determining an image position obtains an image signal representing the whole image, which has been recorded approximately over the whole area of a recording medium, by carrying out an image read-out operation from approximately the whole area of the recording medium, at part of which an object image has been recorded. The position of the object image on the recording medium is determined on the basis of the image signal. A certainty operation device is provided to calculate the degrees of certainty, which indicate step-wise the levels of probability that the object image will be present in partial regions on said recording medium. The degree of certainty is calculated for each of the partial regions on the recording medium, in which partial regions the object image is expected as being recorded. A position determining device is provided to determine the position of the object image on the recording medium on the basis of a plurality of the degrees of certainty, which have been calculated for the respective partial regions on the recording medium.