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[r3313]: / trunk / py4science / book / examples / scipy / lowrank.py Maximize Restore History

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"""Low-rank approximations for images"""

import scipy as S
import pylab as P
from scipy.plt import lena

# Set grayscale colormap
P.gray()

# load lena into array
lena = lena()
U,s,Vh = S.linalg.svd(lena)
P.plot(s)
P.show()