Image input apparatus, recording medium and image synthesis method

A computer readable recording medium storing a program for causing a computer to execute image synthesis processing, wherein:

• the computer is constructed to be connectable to an image input apparatus having a scanning surface used for scanning a document;
• the image input apparatus includes:
• an image reading section for reading an image of the document facing the scanning surface,
• a position detection section for detecting a moving direction and a movement amount of the image input apparatus, and
• a control section for controlling the image reading section and the position detection section so that detection is performed by the position detection section in synchronization with image reading performed by the image reading section;
• and
• the image synthesis processing includes the step of synthesizing a plurality of images read by the image reading section into one image based on a detection result obtained by the position detection section.

An image synthesis method for performing image synthesis using an image input apparatus having a scanning surface used for scanning a document, the image synthesis method comprising the steps of:

• reading an image of the document facing the scanning surface;
• detecting a moving direction and a movement amount of the image input apparatus;
• detecting the moving direction and the movement amount of the image input apparatus in synchronization with image reading performed by the image reading section;
• and
• synthesizing a plurality of images read by the image reading section into one image based on a detection result obtained by the position detection section.