1. An image pickup apparatus comprising: a storage ( 21 ) for storing first image data and second image data obtained respectively in a first photographing operation and a second photographing operation; a first direction-designating unit ( 26 ) for designating a direction for the first image data stored in the storage; a second direction-designating unit ( 26 ) for designating a direction for the second image data stored in the storage; a direction-comparing unit ( 224 ) for comparing the directions designated respectively for the first image data and the second image data by the first and the second direction-designating unit; an image-angle correcting unit ( 225 ) for adjusting a tilt of either of the first and the second image data depending on a result of the comparison made by the direction-comparing unit so that the direction of the adjusted image data coincides with the direction of the other image data; and an image composing unit ( 226 ) for combining the image data adjusted by the image-angle correcting unit and the other image data.