to find length of edges
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is there any function for finding out the length of the edges and average number of edges...?actually i hav to determine the edges using canny edge detection method.So how can i find out the length and average number of edges?
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Image Analyst
2012-1-10
The edge image returned by edge() is a logical image. So to get the length of all the edges, you do
lengthOfEdges = sum(edgeImage);
To get the number of edges:
[labeledImage numberOfEdges] = bwlabel(edgeImage);
To get average edge length (which you didn't ask for but I'm giving you anyway in case you need it), it's
averageEdgeLength = lengthOfEdges / numberOfEdges;
To get the average number of edges you have to define (like Walter asked) what you're averaging over.
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David Young
2012-1-10
Guessing a little, but I suspect that the following functions will be sufficient:
- sum
- bwlabel
- regionprops
另请参阅
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