1. An image processing apparatus to capture an object and record a captured image comprising: small image creation means for creating a small image from composite image data; image file creation means for creating one image file including composite image data and management data indicating that the composite image data comprises a plurality of images, the management data being stored in an Exif value data area in an Exif IFD data structure; a display control means for controlling display of the composite image data; and an extraction means for extracting a specified small image from the composite image data whose display is controlled by the display control means based on the management data.