import matplotlib.pyplot as plt from demo_image import get_demo_image from mpl_toolkits.axes_grid.axes_rgb import RGBAxes def get_rgb(): Z, extent = get_demo_image() Z[Z<0] = 0. Z = Z/Z.max() R = Z[:13,:13] G = Z[2:,2:] B = Z[:13,2:] return R, G, B fig = plt.figure(1) ax = RGBAxes(fig, [0.1, 0.1, 0.8, 0.8]) r, g, b = get_rgb() kwargs = dict(origin="lower", interpolation="nearest") ax.imshow_rgb(r, g, b, **kwargs) ax.RGB.set_xlim(0., 9.5) ax.RGB.set_ylim(0.9, 10.6) plt.draw() plt.show()