6 Side detection using hough transform

I have an Image consisting of different screws heads of different shape, some are circular, hexagonal and flat (rectangular) I need to detect 6 side shape using Hough Transform. I have applied line Hough transform but it detects the line segments. How can I use this information to decide the shape of figure

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Why do you need to use that technique? Also, you forgot to attach your image. click here

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Asked:

on 11 Nov 2018

Commented:

on 11 Nov 2018

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