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    Thread: SVD Image Compression
Post: SVD Image Compression

Uses singular value decomposition to compress an grayscale image by removing small singular values. import numpy as np import scipy.misc as sm import numpy.linalg as nl def compress(file, tol, newfi...
Pythia8 Code sharing 1 3,509 Jan-11-2021, 11:23 AM
    Thread: Gershgorin discs
Post: Gershgorin discs

Showing how the Gershgorin discs coincide with the spectrum for a diagonal matrix. In the first image is the original matrix as the scaling factor p=1 and, in the following images the off-diagonal ele...
Pythia8 Code sharing 1 3,630 Jan-11-2021, 11:13 AM

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