Image processing device, image processing method, and recording medium

An image processing method executed by a computer, comprising:

• a calculation process of calculating, using image data acquired by an imaging device, a reference black level and a reference illumination light component based on pixel values of peripheral pixels located around a target pixel for image processing;
• a black level correction process of correcting a black level of the target pixel based on the reference black level calculated by the calculation process;
• and
• a tone correction process of performing, based on the reference illumination light component calculated by the calculation process, a tone correction of the target pixel with the black level thereof corrected.

A non-transitory computer-readable recording medium having a program embodied therein for causing a computer to perform:

• a calculation process of calculating, using image data acquired by an imaging device, a reference black level and a reference illumination light component based on pixel values of peripheral pixels located around a target pixel for image processing;
• a black level correction process of correcting a black level of the target pixel based on the reference black level calculated by the calculation process;
• and
• a tone correction process of performing, based on the reference illumination light component calculated by the calculation process, a tone correction of the target pixel with the black level thereof corrected.