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authormelissawm <melissawm@gmail.com>2020-02-21 11:39:18 -0300
committermelissawm <melissawm@gmail.com>2020-02-21 11:39:18 -0300
commitcc6537b2281a088448df73bfc3d7aec5ab80f1dc (patch)
tree2312608ba6a382d64702a308bdb3c3e70ea775f5 /doc/source/user/plot_reconstructed.py
parent6b81184f6ca54ea5c45fcb00ce1158fdcbb4db42 (diff)
downloadnumpy-cc6537b2281a088448df73bfc3d7aec5ab80f1dc.tar.gz
Added plot scripts and reworded to respond to PR comments.
Diffstat (limited to 'doc/source/user/plot_reconstructed.py')
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1 files changed, 17 insertions, 0 deletions
diff --git a/doc/source/user/plot_reconstructed.py b/doc/source/user/plot_reconstructed.py
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+++ b/doc/source/user/plot_reconstructed.py
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+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_array_transposed = np.transpose(img_array, (2, 0, 1))
+
+U, s, Vt = linalg.svd(img_array_transposed)
+
+Sigma = np.zeros((3, 768, 1024))
+for j in range(3):
+ np.fill_diagonal(Sigma[j, :, :], s[j, :])
+
+reconstructed = U @ Sigma @ Vt
+plt.imshow(np.transpose(reconstructed, (1, 2, 0)))