Here you can see some screenshots from the Handrec application (Bachelor thesis).
read the Handrec article
(get a bigger image by clicking on the images)
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| threshold filter
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| detect edges (contour)
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| trace contour (Pavlidids)
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| find extrema
| | 5 | | 6 | | 
| find 3 additional points
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| extract features
| | 7 | | 8 | |
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University 
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