ABSTRACT

Image capture 3 Several methods are available for acquiring images and inputting them into a computer. Conventional silver-based photographs, in the form of negatives, transparencies or prints, can be scanned. using a variety of scanning devices. Digital still cameras which capture images directly in digital form have become commonplace, offering both amateur and professional photographers the opportunity of replacing film and associated chemical processing with instant electronic capture. Still images can also be 'grabbed', either from analogue video cameras or video tape, or by using digital video cameras, which offer the facility of capturing either video sequences or still images.