Best method to detect number of holes in part?

jamey270
6 ●2

I'm working on a project that takes a picture of a part (brass part with multiple holes in it, see link) and then I would like to use OpenCV 3.1 to locate and count the holes.

I'm pretty new to OpenCV and could use some pointers into which method I should look into for accomplishing this task. Ideally, the program would locate the circles and do the work for me (I've had little luck thus far; using finding contours and hough circle sample code). Currently using C++.

Is OpenCV even capable of solving this problem?

Thanks in advance for any tips you can provide, Jamey

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answered Dec 17 '16

LBerger
9317 ●2 ●20 ●88 http://www.traimaocv.fr

Not the best method but a method Relative position object and camera must be fixed.

do a linearpolar transform of original image.
may be smooth result to decrease some artefact
extract a vertical section and count maximum

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I think we can maybe make this work! Thanks so much for your input! I've been messing around with this for hours and this seems like a really good option.

jamey270 (Dec 17 '16)edit

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Asked: Dec 17 '16

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Last updated: Dec 17 '16

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