When picked up images picked up by an image pickup apparatus are accessed, the contents of the picked up images are grasped readily. A dynamic picture storage section 200 stores image data produced by an image pickup section 110. A metadata storage section 210 stores transformation information regarding a first picked up image and a second picked up image. An image memory 180 retains images as history images. An image transformation section 150 transforms the second picked up image based on the transformation information. An image synthesis section 170 synthesizes the transformed second picked up image with the history images to form a synthesized image. An operation acceptance section 160 accepts a designation operation which designates a display magnification of the second picked up image. A display region extraction section 190 determines a display region on the synthesized images retained in the image memory 180 based on the designated display magnification and extracts those images which are included in the display region. A display control section 240 successively displays the extracted images on a display section 250.