How to Close open contours [closed]

asked 2018-02-17 10:34:55 -0600

dursunsefa
6 ●1 ●3

I want to close the open contours like the picture :

image description

And I want to close the open contour as shown in the picture and make it a single contour (single shape) . (Different colors in the picture show different contours).

: image description

How can I do that?

I've tried the approxPoly , but did not succeed.

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Closed for the following reason question is off-topic or not relevant by dursunsefa
close date 2018-05-03 10:51:42.301704

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answered 2018-02-19 03:21:03 -0600

StevenPuttemans

20029 ●16 ●82 ●207 http://stevenputtemans...

Erosion and dilation are your friend here, combined with the convex hull operator. This will allow you to close the small gap at the top of the E, thus returning a contour around the line and not around the object itself. Have a look at the morphological operations tutorials, here and here.