Marks zero crossings in an array or image as a binary result
CrossingDetect[image]
CrossingDetect[image, delta]
CrossingDetect[array, …]
CrossingDetect[{4, 0, 1, -2, 1, -2, -3, -1, 3}]//Normal
→ {0, 0, 1, 0, 1, 0, 0, 0, 1}CrossingDetect[{4, 0, 1, -2, 1, -2, -3, -1, 3}]
→ SparseArray[Automatic, {9}, 0, {1, {{0, 3}, {{3}, {5}, {9}}}, {1, 1, 1}}]