Hi Clive! Thanks for your interest. I started on Bob Shomler's request for patent information first. I went to the Delphi site: http://www.delphion.com/details?pn=US06195161__
and found this description: Surface defects in a reflection scan of a print made with visible light are corrected by using a scan of the print made with infrared light. This correction of surface defects is performed by controlling the intensity of defect detail in the infrared record by multiplying that defect detail by a gain. The gain varies for each region of the image as a function of the brightness of the image in that region. The gain approaches unity for white areas of the image, drops toward zero for darker areas, and approaches a small negative number for black areas of the image. The gain-multiplied defect detail is then subtracted from the visible image to create the corrected image free of the surface defects. Please check out the site for additional description. I probably wasn't very accurate when I described it as "looks through". I hope this description is helpful. Good luck scanning! Jack Phipps Applied Science Fiction -----Original Message----- From: Clive Moss [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 06, 2002 8:17 PM To: Jack Phipps Subject: [filmscanners] RE: Digital ICE >Digital ICE is unique (and patent protected) > in that it "looks through" the surface defects and identifies > the underlying information in the film. Not sure I understand this. If the defect is, say, a speck of a substance (talc, eg) that cannot be penetrated by anything the scanner can throw at it, would you not get the same result as a hole in the film, if you do not interpolate? -- Clive Moss ---------------------------------------------------------------------------------------- Unsubscribe by mail to [EMAIL PROTECTED], with 'unsubscribe filmscanners' or 'unsubscribe filmscanners_digest' (as appropriate) in the message title or body
