An electronic endoscope system (11, 76, 86, 101) includes a light source apparatus (14, 104), a CCD (21, 102) , and a processor apparatus (13). The light source apparatus applies illumination light to a target portion. The target portion includes a surface blood vessel (72) and a subsurface blood vessel (73). The CCD captures light reflected from the target portion. The processor apparatus generates an image based on an imaging signal from the CCD. The processor apparatus has a suppression processor (60, 103) . Out of the surface blood vessel and the subsurface blood vessel in an image, the suppression processor reduces contrast of a non-target blood vessel relative to that of a target blood vessel to suppress or reduce display of the non-target blood vessel relative to that of the target blood vessel.
