  The article discusses an algorithm for recognizing the contour of fragments
of a honeycomb block. The inapplicability of ready-made functions of the OpenCV
library is shown. Two proposed algorithms are considered. The direct scanning
algorithm finds the extreme white pixels in the binarized image, it works
adequately on convex shapes of products, but does not find a contour on concave
areas and in cavities of products. To solve this problem, a scanning algorithm
using a sliding matrix is proposed, which works correctly on products of any
shape.
