An adaptive morphological filter for image processing

  title={An adaptive morphological filter for image processing},
  author={Fulin Cheng and Anastasios N. Venetsanopoulos},
  journal={IEEE transactions on image processing : a publication of the IEEE Signal Processing Society},
  volume={1 4},
Novel types of opening operator (NOP) and closing operator (NCP) are proposed. An adaptive morphological filter is then constructed on the basis of the NOP and NCP. The filter can remove any details consisting of fewer pixels than a given number N, while preserving the other details. Efficient algorithms are also developed for the implementation of the NOP and NCP. 
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