Thesis (PDF) - Signal & Image Processing Lab
Thesis (PDF) - Signal & Image Processing Lab
Thesis (PDF) - Signal & Image Processing Lab
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6.5. EWT CONCLUSIONS 111<br />
6.5 EWT conclusions<br />
A new tree representation is proposed and studied. In addition, a number of appli-<br />
cations are proposed and examined. Those applications include pre-processing for<br />
OCR, noise filtering, and initial step for dust and scratch removal. It is shown that<br />
EWT-based filtering gives better results for those applications, as compared to other<br />
filtering techniques. The EWT-based filtering produces results similar to the classical<br />
morphological filtering, but achieves a better results when the self-duality is required.
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