Image processor, image processing method, and program

An image processing method comprising:

• causing an image sensor to capture an image of an underwater measurement target;
• emitting first laser light underwater;
• emitting second laser light underwater from a position that differs from the first laser light source;
• and
• generating, on a basis of first information acquired by causing the image sensor to capture images of the first laser light and the second laser light at a first water depth and second information acquired by causing the image sensor to capture images of the first laser light and the second laser light at a second water depth which is a water depth at which the image sensor captures an image of the measurement target, correction data used to correct distortion in a captured image captured by the image sensor at the second water depth.

A non-transitory memory storing a program that, when executed by a computer, causes the computer to:

• emit first laser light underwater;
• emit second laser light underwater from a position that differs from the first laser light source;
• and
• generate, on a basis of first information acquired by causing an image sensor to capture images of the first laser light and the second laser light at a first water depth and second information acquired by causing the image sensor to capture images of the first laser light and the second laser light at a second water depth which is a water depth at which the image sensor captures an image of a measurement target, correction data used to correct distortion in a captured image captured by the image sensor at the second water depth.