Python 3.4.2 (v3.4.2:ab2c023a9432, Oct  6 2014, 22:15:05) [MSC v.1600 32 bit (Intel)] on win32
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>>> ================================ RESTART ================================
>>> 
>>> image2bitmap("./cat.jpg")
>>> im = Matrix.load("./cat.bitmap")
>>> im.display()
>>> im2 = add_gauss(im, sigma=30)
>>> join_h(im,im2).display()
>>> im3 = add_SP(im, 0.2)
>>> join_h(im,im3).display()
>>> im3 = add_SP(im, 0.1)
>>> join_h(im,im3).display()
>>> im4 = local_means(im3)
>>> im5 = local_medians(im3)
>>> join_h(join_h(im, im3),im4).display()
>>> join_h(im,im4).display()
>>> join_h(im,im5).display()
>>> im6 = local_medians(im5)
>>> join_h(im5,im6).display()
>>> im7 = local_medians(im3, k=2)
>>> join_h(im,im7).display()
>>>