When composition of a first captured image having a tilted subject image is corrected, the first image is rotated such that the subject image stands in an erect position, according to the attitude of the camera achieved during capture of the first image. The table model uses an unstructured N-dimensional grid for approximating the expressions. The electronic watermark detecting section has a function of checking for alterations in the image data in the disk cache, and an interface to the forwarding request section is also appended thereto. To disengage the latch mechanism the resilient wire is deflected, e. A control module detects an error in the full image file and executes the boot program using the partial image file.