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Digital cameras

  • US 20020113882A1
  • Filed: 02/15/2002
  • Published: 08/22/2002
  • Est. Priority Date: 02/16/2001
  • Status: Abandoned Application
First Claim
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1. A digital image capture apparatus configured to capture an image of a document (102) at least partially illuminated by ambient light, the apparatus comprising:

  • an image capture device (101) comprising a detector (107) adapted to capture an image of said document;

    an illumination source (106) for illuminating said document, a detector read-out circuit (108) for capturing image data from said detector (107) in response to a control signal;

    a controller for controlling said detector read-out circuit (108) and said illumination source (106), wherein said controller provides a first control signal to said read-out circuit (108) to capture a first image of said document (102) when illuminated by said illumination source (106) at a first intensity and by said ambient light to produce a first image, and wherein said controller further provides a second control signal to said read-out circuit to capture a second image of said document (102) when said document (102) is illuminated by said illumination source at a second, lower, intensity and by said ambient light, said second, lower, intensity having a value greater than or equal to zero intensity but less than the first intensity; and

    a processor (112) arranged to process said first captured image with said second captured image to produce a final image of said document.

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