Image processing apparatus, method, and product for identifying and extracting an entire code from a pluraility of read portions of a sheet

An image processing method for inspection of a sheet on which a code image obtained by encoding predetermined information is printed, the image processing method comprising:

• acquiring positional information indicating a position and a size of the code image in the sheet;
• acquiring a plurality of read images obtained by a plurality of reading units reading different portions of the sheet, respectively, wherein the read images become an image indicating the entire sheet by being combined;
• determining whether any one of the read images includes the entire code image based on the positional information;
• and
• extracting the predetermined information by reading the code image in the read image including the entire code image.

A non-transitory computer-readable storage medium storing a program which causes a computer to perform an image processing method for inspection of a sheet on which a code image obtained by encoding predetermined information is printed, the image processing method comprising:

• acquiring positional information indicating a position and a size of the code image in the sheet;
• acquiring a plurality of read images obtained by a plurality of reading units reading different portions of the sheet, respectively, wherein the read images become an image indicating the entire sheet by being combined;
• determining whether any one of the read images includes the entire code image based on the positional information;
• and
• extracting the predetermined information by reading the code image in the read image including the entire code image.