Medical control device and medical observation system using a different wavelength band than that of fluorescence of an observation target to control focus or brightness

Abstract

A medical control device includes: a light source controller configured to control a light source configured to emit excitation light in a first wavelength band and light in a second wavelength band; a captured image acquiring unit configured to acquire a captured image obtained by capturing an image of an observation target irradiated with light emitted from the light source; an evaluation value calculator configured to calculate, based on the captured image, an evaluation value used for at least one of a first control for controlling a focal position of an imaging device configured to generate the captured image or a second control for controlling a brightness of the captured image; an operation controller configured to perform, based on the evaluation value, at least one of the first control or the second control; and an adjustment processing execution unit configured to perform adjustment processing on the captured image.