How to easy to get the length of the edge??? [closed]

asked 2013-10-10 05:00:39 -0500

wuling gravatar image

Hi all: When I use sobel or robert filter and threshold to get the edge. How to easy to get the length of the edge ? How many lines are in the image? Thanks

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Closed for the following reason the question is answered, right answer was accepted by sturkmen
close date 2020-10-12 07:56:36.702651

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2

edge filters don't give you any of that information. you need to do a second step, and apply findContours or Hough* on the binary img

berak gravatar imageberak ( 2013-10-10 05:46:53 -0500 )edit