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Systems for spectral multiplexing of source images to provide a composite image, for rendering the composite image, and for spectral demultiplexing the composite image, which achieve increased dynamic range in a recovered source image

  • US 20040071366A1
  • Filed: 10/09/2002
  • Published: 04/15/2004
  • Est. Priority Date: 10/09/2002
  • Status: Active Grant
First Claim
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1. A method of processing a plurality of source images, comprising the steps of:

  • encoding the plurality of source images in a composite image according to an image-dependent dynamic range determination so as to provide a maximum usable contrast in at least one recovered source image;

    rendering the composite image on a substrate by use of a plurality of colorants; and

    recovering the at least one of the encoded source images from the rendered composite image, such that the recovered source image is made distinguishable, by subjecting the rendered composite image to a narrow-band illuminant that is preselected to reveal the source image.

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