An endoscope system includes: a light source that generates red, green, and blue laser lights a light-guiding section including a first end portion into which the laser lights enter, and a second end portion from which the laser lights are applied to the subject a light detection that detects reflection light from the subject, and outputs a detection signal according to the reflection light a memory that stores a plurality of color correction parameters, each of which is set for each subject and an image processing section that generates an observation image based on the detection signal, and performs color correction on the observation image based on at least one of the plurality of color correction parameters, which is selected according to the subject.
