.. _pylab_examples-image_demo: pylab_examples example code: image_demo.py ========================================== .. plot:: /home/tcaswell/other_source/matplotlib/doc/mpl_examples/pylab_examples/image_demo.py :: #!/usr/bin/env python import numpy as np import matplotlib.cm as cm import matplotlib.mlab as mlab import matplotlib.pyplot as plt delta = 0.025 x = y = np.arange(-3.0, 3.0, delta) X, Y = np.meshgrid(x, y) Z1 = mlab.bivariate_normal(X, Y, 1.0, 1.0, 0.0, 0.0) Z2 = mlab.bivariate_normal(X, Y, 1.5, 0.5, 1, 1) Z = Z2-Z1 # difference of Gaussians im = plt.imshow(Z, interpolation='bilinear', cmap=cm.RdYlGn, origin='lower', extent=[-3,3,-3,3], vmax=abs(Z).max(), vmin=-abs(Z).max()) plt.show() Keywords: python, matplotlib, pylab, example, codex (see :ref:`how-to-search-examples`)