Film scanner

A film scanner for scanning images formed on a film, comprising:

• an illuminating system that emits collimated light to illuminate the film;
• an imaging device that receives the collimated light passed through the film to capture the images formed on the film;
• a defect position obtaining system that obtains position data corresponding to a position of an extraneous substance on the film based on a position of a black portion on an image captured by said imaging device;
• and
• an interpolating system that performs interpolation based on said position data obtained by said defect position obtaining system.

A film scanner for scanning images formed on a film, comprising:

• an illuminating system that emits collimated light to illuminate the film;
• an imaging device that receives the collimated light passed through the film to capture the images formed on the film;
• and
• a defect position obtaining system that obtains a plurality of images each of which corresponds to a frame of the film to be scanned using said imaging device, and obtains position data corresponding to a position of an extraneous substance on the film based on a difference between at least two of said plurality of images, said plurality of images being respectively obtained at different conditions of the collimated light incident on the film.

A film scanning system for scanning images formed on a film, comprising:

• a film scanner that includes an illuminating system which emits collimated light to illuminate the film and which is capable of changing conditions of the collimated light incident on the film, and an imaging device that receives the collimated light passed through the film to capture the images formed on the film;
• and
• an external device that includes an interface for communicating with said film-scanner so as to control said film scanner,
• wherein said external device includes:
• a defect position obtaining system that obtains a plurality of images each of which corresponds to a frame of the film to be scanned using said imaging device, and obtains position data corresponding to a position of an extraneous substance on the film based on a difference between at least two of said plurality of images, said plurality of images being respectively obtained at different conditions of the collimated light incident on the film;
• and
• an interpolating system that performs interpolation based on said position data obtained by said defect position obtaining system.

A method for correcting defects on a scanned image caused by an extraneous subject on a film, comprising:

• performing a first scanning to obtain an image of a frame of the film to be scanned at a first incident angle of light incident on the film;
• performing a second scanning to obtain an image of said frame of the film to be scanned at a second incident angle of light incident on the film;
• and
• determining a position of said extraneous subject on the film using the image obtained at said first incident angle of light and the image obtained at said second incident angle of light.

A method for correcting defects on a scanned image caused by an extraneous subject on a film, comprising:

• performing a first scanning to obtain an image of a frame of the film to be scanned at a first incident angle of light incident on the film;
• performing a second scanning to obtain at least one image of said frame, the at least one image being obtained at a different incident angle of light incident on the film from said first incident angle;
• and
• determining a position of said extraneous subject on the film using the image obtained at said first incident angle of light and the image obtained at said different incident angle of light from said first incident angle.