Communication method

A communication apparatus for obtaining information from a subject, comprising:

• a processor;
• and
• a memory storing a computer program, wherein the computer program, when executed by the processor, causes the processor to perform operations comprising:
• obtaining image information of the subject in an image information-taking mode;
• obtaining visible light data of the subject in a visible light communication mode, the visible light communication mode being a different mode from the image information-taking mode;
• and
• setting a shutter speed and an international organization for standardization (ISO) speed rating or a gain value for the visible light communication mode,
• wherein in the setting, the shutter speed for the visible light communication mode is set to be faster than a shutter speed for the image information-taking mode, and the ISO speed rating or the gain value for the visible light communication mode is set to be greater than an ISO speed rating or a gain value for the image information-taking mode.

A non-transitory computer-readable recording medium that stores a computer program, when executed by a processor, causes a computer to execute a communication method for obtaining information from a subject, the communication method including:

• obtaining image information of the subject in an image information-taking mode;
• obtaining visible light data of the subject in a visible light communication mode, the visible light communication mode being a different mode from the image information-taking mode;
• and
• setting a shutter speed and an international organization for standardization (ISO) speed rating or a gain value for the visible light communication mode,
• wherein in the setting, the shutter speed for the visible light communication mode is set to be faster than a shutter speed for the image information-taking mode, and the ISO speed rating or the gain value for the visible light communication mode is set to be greater than an ISO speed rating or a gain value for the image information-taking mode.