A common use is the Hamming distance, which is the number of different bits between two streams. It comes up in things like the census transform, which is used

A common use is the Hamming distance, which is the number of different bits between two streams. It comes up in things like the census transform, which is used for image matching. https://www.researchgate.net/figure/Census-transform-and-Hamming-distance-for-3-x-3-windows_fig2_261269856 https://www.researchgate.net/figure/Census-transform-and-Ham...