Image processing device, image processing method, and image processing program

A computer readable recording medium storing an image processing program causing a computer to perform:

• an acquisition function of acquiring a read image generated by reading a receipt or a bill;
• a first character recognition function of performing first character recognition processing on the read image;
• an extraction function of extracting a specific character from a result of the first character recognition processing;
• a target area specification function of specifying a target area in the read image based on the extracted specific character and a relevant information where the specific character stored in a storage unit in advance and a position of the target area to be a target of second character recognition processing are related to each other;
• and
• a second character recognition function of performing the second character recognition processing, whose character recognition accuracy is higher than that of the first character recognition processing, on the specified target area.

An image processing device comprising:

• an acquisition unit that acquires a read image generated by reading a receipt or a bill;
• a first character recognition unit that performs first character recognition processing on the read image;
• a second character recognition unit that performs second character recognition processing using a model for character recognition created by machine learning;
• a storage unit that stores in advance a relevant information where a specific character and a position of a target area to be a target of the second character recognition processing are related to each other;
• and
• a control unit that extracts the specific character from a result of the first character recognition processing performed by the first character recognition unit, specifies the target area in the read image based on the extracted specific character and the relevant information, and causes the second character recognition unit to perform the second character recognition processing on the specified target area.