def METHOD_NAME(self):
    image = numpy.empty(shape=(200, 150, 3), dtype=numpy.uint8)
    x = numpy.outer(numpy.linspace(-10, 10, 200),
                    numpy.linspace(-5, 5, 150))
    r = numpy.sin(x) / x
    g = numpy.cos(x/10) * numpy.sin(x/10)
    b = x
    image[..., 0] = 100 + 200 * (r / r.max())
    image[..., 1] = 100 + 200 * (g / g.max())
    image[..., 2] = 100 + 200 * (b / b.max())
    image[...] = image + numpy.random.randint(0, 20, size=image.shape)
    self.plot.addImage(image)
    self.dataLayout.setCurrentWidget(self.plot)