Sequence for Band 1 ---------------------- Dilation SE8 Dilation SE4 Dilation SE1 Dilation SE7 Erosion SE8 Erosion SE4 Erosion SE1 Erosion SE7 Sequence for Band 2 ---------------------- Dilation SE3 Dilation SE5 Dilation SE3 Dilation SE6 Erosion SE3 Erosion SE5 Erosion SE3 Erosion SE6 Sequence for Band 3 ---------------------- Dilation SE4 Dilation SE7 Dilation SE3 Dilation SE7 Erosion SE4 Erosion SE7 Erosion SE3 Erosion SE7 Color Change Rule ------------------ [[0, 0, 0, 0], [0, 0, 1, 3], [0, 1, 0, 1], [0, 1, 1, 3], [1, 0, 0, 1], [1, 0, 1, 3], [1, 1, 0, 3], [1, 1, 1, 3]]