CODEWITHSUNDEEP
lineextractfeature-extractionhalcon
sharkyenergy
sharkyenergy

Reputation: 4173

Halcon - Extract straight edge from XLD

I have a XLD edge, like the one in red in the sample picture below.

I need to extract start/endpoint of straight lines that reppresent it. Hough lines sort of work for this, but the results are not really replicable. minor changes in the contour produce unexpected results.

How can the contours be extracted as straight lines? (blue) with start and finish coordinates? lines shorter than a specified length should not be counted as separate line.

enter image description here

Upvotes: 1

Views: 664

Answers (1)

Vladimir Perković
Vladimir Perković

Reputation: 1433

Contour needs to be converted to a polygon using the following function:

gen_polygons_xld (Object, Polygons, 'ramer', 25.0)

The only adjustable parameter is the alpha (25.0) which decides the approximation threshold.

enter image description here

Upvotes: 1

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