The present chapter covers some morphological algorithms for binary images. These include boundary detection, conditional dilation, curve filling, thinning, segmentation, and restoration. The next chapter explores algorithms employing the hit-or-miss transform. The intent is not to produce a complete compilation of morphological algorithms, but rather to provide a geometrically grounded introduction to some of the most useful techniques. In all cases, it should be recognized that actual use of a particular methodology will often require preprocessing to put the image into a form suitable for application of the algorithm and postprocessing to provide an acceptable output image.
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