Canny Edge Image - Noise removal -

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i have canny edge detected image of ball (see link below) contains lot of noisy edges. best image processing techniques can use remove these noisy edges without removing edges belonging ball?

original image

original

canny edge image

canny

many in advance , advice, appreciated!

ps trying clean edge image prior using circle hough transform detect ball.

the best option filter image before applying edge detector. in order keep sharp edges need use more sophisticated filter gaussian blur.

two easy options bilateral filter or guided filter. these 2 filters easy implement , provide results in cases: gaussian noise removal preserving edges. if need more powerful, can try filter bm3d, 1 of state-of-the-art filters, , can find open source implementation here.


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