Sequence for Band 1 ---------------------- Dilation SE2 Dilation SE8 Dilation SE1 Dilation SE4 Erosion SE2 Erosion SE8 Erosion SE1 Erosion SE4 Sequence for Band 2 ---------------------- Dilation SE7 Dilation SE5 Dilation SE7 Dilation SE8 Erosion SE7 Erosion SE5 Erosion SE7 Erosion SE8 Sequence for Band 3 ---------------------- Dilation SE6 Dilation SE2 Dilation SE3 Dilation SE5 Erosion SE6 Erosion SE2 Erosion SE3 Erosion SE5 Color Change Rule ------------------ [[0, 0, 0, 0], [0, 0, 1, 3], [0, 1, 0, 1], [0, 1, 1, 2], [1, 0, 0, 1], [1, 0, 1, 1], [1, 1, 0, 1], [1, 1, 1, 2]]