Processing apparatus, processing system, processing method, and storage medium

A processing apparatus comprising:

• a first obtaining unit configured to obtain first image information relating to brightness adjustment of a first image obtained from light including light of a first light source and light of a second light source different from the first light source;
• a second obtaining unit configured to obtain second image information relating to brightness adjustment of a second image obtained from light of the second light source;
• and
• a control unit configured to control each of intensity of a first irradiation light emitted by the first light source and sensitivity of the first image and intensity of a second irradiation light emitted by the second light source and sensitivity of the second image,
• wherein the control unit controls at least one of the intensity of the first irradiation light emitted by the first light source, the sensitivity of the first image, the intensity of the second irradiation light emitted by the second light source, and the sensitivity of the second image on a basis of the first image information and the second image information so that a ratio between the intensity of the first irradiation light and the intensity of the second irradiation light is within a predetermined range.