F. Thinning The morphological thinning operator is the subtraction between the input image and the sub generating operator with structuring A and B. Both structuring elements will be rotated 90 for four times. This means that there will be eight structuring elements. The result will be the input image with pixels in which its center contains the pattern specified by A and B marked as zero. This operation removes pixels which satisfy the pattern given by the structuring elements A and B [12].
Fig