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Method and apparatus for correcting a channel dependent color aberration in a digital image

  • US 7,683,950 B2
  • Filed: 04/26/2005
  • Issued: 03/23/2010
  • Est. Priority Date: 04/26/2005
  • Status: Expired due to Fees
First Claim
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1. A method for correcting a channel dependent color aberration in a digital image, where the digital image comprises a plurality of color channels, said method comprising the steps of:

  • capturing an image comprising a plurality of color channels, wherein one of the color channels is a blurred color channel due to a channel dependent color aberration affecting that channel;

    using another color channel, other than the blurred color channel, as an indication of an aim sharpness; and

    adjusting the sharpness of the blurred color channel, at least partially, toward the aim sharpness;

    wherein the aim sharpness is a modulation transfer function (MTF) of the other color channel.

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