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Red-eye filter method and apparatus

  • US 7,787,022 B2
  • Filed: 05/13/2008
  • Issued: 08/31/2010
  • Est. Priority Date: 10/09/1997
  • Status: Expired due to Fees
First Claim
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1. A portable digital camera having no photographic film, comprising:

  • (a) an integral flash for providing illumination during image acquisition;

    (b) a digital image capturing apparatus including(i) a main image sensor for acquiring a main image, and(ii) a separate sensor for acquiring a low resolution image including a subsample resolution representation of the main image; and

    (c) a red-eye filter for correcting a red eye defect within the main image acquired by the main image sensor based on analysis of the low resolution image acquired by the separate sensor including the subsample resolution representation of the main image(d) a dedicated hardware subsystem which is provided low resolution image data directly from the separate sensor; and

    (e) a main system memory which receives raw image data and metadata as implemented by the dedicated hardware subsystem; and

    (f) wherein the main system memory is configured to receive meta data that comprises identified red areas determined not to be red eye regions.

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