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Endoscopic system for converting primary color images into hue, saturation and intensity images

  • US 4,805,016 A
  • Filed: 08/21/1987
  • Issued: 02/14/1989
  • Est. Priority Date: 08/25/1986
  • Status: Expired due to Term
First Claim
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1. An endoscopic system for obtaining a color picture by combining three primary color images with each other, said system comprising:

  • image converting means for converting said three primary color images into hue, saturation, and intensity images;

    means for reproducing said three primary color images from said converted hue, saturation, and intensity images;

    histogram processing means for obtaining a histogram based on at least one of said hue, saturation, and intensity images obtained by said image converting means; and

    then performing at least one of ameans for stretching or shifting said histogram, or both.

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