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Technique for finding the histogram region of interest for improved tone scale reproduction of digital radiographic images

  • US 5,426,684 A
  • Filed: 11/15/1993
  • Issued: 06/20/1995
  • Est. Priority Date: 11/15/1993
  • Status: Expired due to Term
First Claim
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1. A method of finding a histogram region of interest for improved tone scale reproduction of digital radiographic images comprising the steps of:

  • pseudo-randomly sampling a digital radiographic image with a sample having an appropriate size to delineate a region of interest;

    processing each sample using texture analysis techniques to extract a plurality of texture features;

    using the extracted texture features, classifying said sample with a previously trained neural network classifier to determine its class; and

    accumulating pixel values belonging to the same class to form separate histograms for each said class, wherein each said histogram can be used to optimize tone scale reproduction.

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