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Method and circuit for reducing the influence of a bright image area in an endoscope image signal

  • US 5,049,989 A
  • Filed: 01/04/1990
  • Issued: 09/17/1991
  • Est. Priority Date: 01/04/1990
  • Status: Expired due to Term
First Claim
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1. A method of reducing influence of a bright part of an image in an endoscope image signal comprising respective steps of:

  • extracting, from said endoscope image singal, a signal component of said bright part of said image in which a difference in brightness level at a periphery of said image is above a predetermined value and a spatial size of said bright part is below a predetermined value; and

    depressing said bright part of said image in said endoscope image signal or a signal based on said endoscope image signal by using said signal component of said bright part of said image.

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