Extracting halftones from printed documents using texture analysis

@inproceedings{Dunn1997ExtractingHF,
  title={Extracting halftones from printed documents using texture analysis},
  author={Dennis F. Dunn and Thomas P. Weldon and William Evan Higgins},
  year={1997}
}
Separating halftones from text is an important step in document analysis. We present an algorithm that accurately extracts halftones from other information in printed documents. We treat halftone extraction as a texture-segmentation problem. We show that commonly used halftones, consisting of a pattern of dots, can be viewed as a texture. This texture exhibits a distinct spectral component that can be detected using a properly tuned Gabor filter. The Gabor filter essentially transforms… CONTINUE READING

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