def METHOD_NAME():
    """Create a dummy image"""
    x = numpy.linspace(-1.5, 1.5, 1024)
    xv, yv = numpy.meshgrid(x, x)
    signal = numpy.exp(- (xv ** 2 / 0.15 ** 2 + yv ** 2 / 0.25 ** 2))
    # add noise
    signal += 0.3 * numpy.random.random(size=signal.shape)
    return signal