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Diffstat (limited to 'doc/source/user/plot_approx.py')
| -rw-r--r-- | doc/source/user/plot_approx.py | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/doc/source/user/plot_approx.py b/doc/source/user/plot_approx.py deleted file mode 100644 index a2d6981d9..000000000 --- a/doc/source/user/plot_approx.py +++ /dev/null @@ -1,19 +0,0 @@ -from scipy import misc -import matplotlib.pyplot as plt -import numpy as np -from numpy import linalg - -img = misc.face() -img_array = img / 255 -img_gray = img_array @ [0.2126, 0.7152, 0.0722] - -U, s, Vt = linalg.svd(img_gray) - -Sigma = np.zeros((768, 1024)) -for i in range(768): - Sigma[i, i] = s[i] - -k = 10 - -approx = U @ Sigma[:, :k] @ Vt[:k, :] -plt.imshow(approx, cmap="gray") |