Imaging apparatus and method for controlling white balance

  • US 7,551,209 B2
  • Filed: 03/08/2007
  • Issued: 06/23/2009
  • Est. Priority Date: 02/27/2002
  • Status: Active Grant
First Claim
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1. An imaging apparatus, comprising:

  • object distance detecting means for detecting distance to an object;

    zoom value detecting means for detecting a zoom value of an optical system;

    object brightness detection means for detecting brightness of the object;

    white balance controlling means for detecting an achromatic portion of the object based on a chrominance signal generated from an output signal of an imaging element through the optical system, and controlling gain of the chrominance signal in accordance with a shift amount of white balance detected from the achromatic portion, wherein white balance is controlled such that;

    while object distance detection information is fixed, if zoom value information changes when object brightness information is a first value, white balance adjustment is made or not made according to a first threshold value; and

    if the zoom value information changes, when the object brightness information is a second value different from the first value, white value adjustment is made or not made according to a second threshold value different from the first threshold value.

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