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