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kolhizin / bujo

Proof of concepts and sharedlib for bujo app
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Identify local maximas in Radon transform #21

Closed kolhizin closed 5 years ago

kolhizin commented 5 years ago

On Radon transform of text image identify local maximas of certain width

Algorithm

  1. Specify region size (rectangular in poc)
  2. Run filter on image where maximal value in rectangle is selected - make the same size as source
  3. Select points that are equal to filtered
  4. Specify cutoff point for value of this maxima
  5. Alternative: run minima filter (or quantile 10, e.g.)
  6. Select maximas that are far greater than minima or greater cutoff

DoD

kolhizin commented 5 years ago

Good results of: 1d-local maximas that are extrapolated to 2d