Electronic endoscope system, has black alignment unit producing black alignment value for adjusting black alignment of image signals based on black image signals corresponding to black image

摘要

The system has an imaging device (14) arranged in a video monitoring unit (11) and exposed with a normal catch time for producing image signals. A black alignment unit produces a black alignment value for adjusting black alignment of image signals based on a black image signals corresponding to a black image. The black image signals are produced through exposure of an image with a catch time, which is shorter than normal catch time.