Image capturing apparatus, image capturing method, and computer-readable recording medium storing image capturing program

An image capturing method executed by a computer, the image capturing method comprising:

• sequentially obtaining a plurality of frames from an image capturing device in which a plurality of pixels having sensitivity to visible light and illuminating light in a certain wavelength range are arranged and that captures a moving image having a plurality of frames;
• controlling a radiation device that radiates the illuminating light onto an image capturing region of the image capturing device;
• selecting, from among a plurality of frames captured by the image capturing device, a frame captured during an OFF period of the radiation device;
• and
• outputting the selected frame as a frame representing a visible image of the image capturing region.

A computer-readable recording medium storing an image capturing program for causing a computer to execute a process, the process comprising:

• sequentially obtaining a plurality of frames from an image capturing device in which a plurality of pixels having sensitivity to visible light and illuminating light in a certain wavelength range are arranged and that captures a moving image having a plurality of frames;
• controlling a radiation device that radiates the illuminating light onto an image capturing region of the image capturing device;
• selecting, from among a plurality of frames captured by the image capturing device, a frame captured during an OFF period of the radiation device;
• and
• outputting the selected frame as a frame representing a visible image of the image capturing region.