ToolPythonBeginner Matplotlib from the ground up: a two-panel figure for one journal column rows, cols, channels = plt.imread("assets/spectrum-column.png").shapeimages = [(plt.imread(buf), "Matplotlib defaults, scaled to 8.6 cm\nlabels 5.3 pt"),(plt.imread("assets/spectrum-column.png"), "built at 8.6 cm\nlabels 8 pt")]width_in = plt.imread(buf).shape[1] / 300