An illumination apparatus makes it possible to properly perform white balance (WB) processing that is image processing for WB correction on the premise of an illumination apparatus that uses a specific light source. The illumination apparatus includes a light source using a light-emitting diode (LED) and a transmitter configured to transmit color information relating to the LED, and the transmitter transmits, as the color information relating to the LED, color information that compensates a difference between spectral characteristics of the specific light source and spectral characteristics of the LED.