Exercise:PCA and Whitening

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(PCA, PCA whitening and ZCA implementation)
(Step 0: Load data)
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[[File:raw_images.png|240px|alt=Raw images|Raw images]]
[[File:raw_images.png|240px|alt=Raw images|Raw images]]
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These patches are stored as column vectors <math>x^{(i)} \in \mathbb{R}^{196}</math> in the <math>196 \times 10000 matrix <math>x</math>.
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These patches are stored as column vectors <math>x^{(i)} \in \mathbb{R}^{196}</math> in the <math>196 \times 10000</math> matrix <math>x</math>.
=== Step 1: Implement PCA ===
=== Step 1: Implement PCA ===

Revision as of 20:34, 4 April 2011

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