Patent ID: 8419628

Claim:
An endoscope system comprising: an endoscope equipped with an insertion portion inserted into a body of a subject, and an image pickup unit disposed at a distal end portion of the insertion portion; an illumination unit which, being detachably connected to the endoscope, illuminates an inside of the body of the subject; an imaging mode input unit used to set an imaging mode of the endoscope to one of a normal-light mode and a special-light mode; a processing condition selection unit which selects, based on the imaging mode, a processing condition for a color correction process of an endoscopic image picked up by the image pickup unit; and a processor detachably connected to the endoscope and equipped with an image processing unit which performs the color correction process, under the processing condition selected by the processing condition selection unit, with respect to each of eight hue regions partitioned by eight reference color axes which consist of six reference color axes of R (red), M (magenta), B (blue), C (cyan), G (green), and Y (yellow) in a color space comprising six hue regions partitioned by six reference hue color axes, and two reference color axes each established additionally in one of two hue regions in contact with one of the six reference color axes selected based on the imaging mode.