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Is it possible to reproduce the following pencil-like image by pure image processing?

Original Image Pencil image

Notes:

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  • $\begingroup$ Canny edge detector? $\endgroup$ – Cris Luengo Apr 1 '18 at 13:30
  • $\begingroup$ I am far from an expert, but I'd have a look into canny edge detector combined with hough transform. $\endgroup$ – Pier-Yves Lessard Apr 2 '18 at 3:52

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