Case of burr (bulge) notch (depression) detection of circular workpiece

1 Original drawing and inspection requirements

  To detect the inside of the black ring 、 Bulges and depressions on the outer ring .

2. Algorithm ideas

Two fixed thresholds are binarized and reversed ----------- Find the outline --------- The area limit and roundness screen out one large and one small 2 Ring like contour （ Write them down as A、B）------- Get the binarization mask between two circular contours pureSrcBin-----

Traverse A 、B.    Find the minimum circumscribed circle as minEnclosingCircleMask--------------- And press 2 Find... In two ways A、B Maximum inscribed circle of （maxIncircleMask_1 /maxIncircleMask_2 See the code for details. ）-------  The final maximum inscribed circle maxIncircleMask = maxIncircleMask_1 +m