Printing method, printing apparatus, and non-transitory computer-readable storage medium storing program

A printing apparatus comprising:

• a printing unit configured to print an image on a medium;
• and
• a control unit, wherein
• the control unit
• acquires a captured image of the medium having a pattern,
• acquires a first template image including a first region of interest set in a pattern image indicating the pattern,
• acquires a second template image including a second region of interest set in the pattern image,
• extracts a first corresponding region corresponding to the first region of interest by matching the first template image with the captured image,
• calculates a first deviation that is a deviation between position coordinates of the first region of interest in the pattern image and position coordinates of the first corresponding region in the captured image,
• corrects the second template image based on the first deviation,
• extracts a second corresponding region corresponding to the second region of interest by matching the corrected second template image with the captured image,
• calculates a second deviation that is a deviation between position coordinates of the second region of interest in the pattern image and position coordinates of the second corresponding region in the captured image,
• corrects a print image indicating an image to be printed on the medium based on the second deviation, and
• causes the printing unit to print the corrected print image.

A non-transitory computer-readable storage medium storing a program, the program causing a computer that controls a printing apparatus to perform printing on a medium to execute:

• acquiring a captured image of the medium having a pattern;
• acquiring a first template image including a first region of interest set in a pattern image indicating the pattern;
• acquiring a second template image including a second region of interest set in the pattern image;
• extracting a first corresponding region corresponding to the first region of interest by matching the first template image with the captured image;
• calculating a first deviation that is a deviation between position coordinates of the first region of interest in the pattern image and position coordinates of the first corresponding region in the captured image;
• correcting the second template image based on the first deviation;
• extracting a second corresponding region corresponding to the second region of interest by matching the corrected second template image with the captured image;
• calculating a second deviation that is a deviation between position coordinates of the second region of interest in the pattern image and position coordinates of the second corresponding region in the captured image;
• correcting a print image indicating an image to be printed on the medium based on the second deviation;
• and
• causing the printing apparatus to print the corrected print image.