An image processing apparatus for an endoscope including a smearing component extraction device for extracting a smearing component caused by a high luminance light beam from an original image composed of an image signal of a subject to be imaged. The image processing apparatus also includes a device...http://www.google.co.uk/patents/US5631695?utm_source=gb-gplus-sharePatent US5631695 - Endoscope with smear extraction and correction
