Abstract: A breast image display apparatus is provided for improving image reading performance on breast images. A right breast area and a left breast area are detected from a right breast image and a left breast image. A plurality of corresponding position detection means are available for detecting pre-set corresponding positions in the right breast area and the left breast area. In the case where one of the corresponding position detection means has failed to detect the corresponding positions therefor, another one of the corresponding position detection means detects the corresponding positions therefor in the right breast area and the left breast area.

Abstract: The outline of a breast is detected based on breast image data representing a breast image obtained by photographing the breast. Then, a nipple projection portion, which locally projects outward from the outline of the breast, is detected based on the information about the outline of the breast.