using PCA how to reduce the dimension of image ?

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lavan
lavan 2011 年 10 月 4 日
hi.. im working on computer vision .here i want to compression the motion capture data without any loss .for that .,initially i want to work with PCA .can anyone help me please to code the image using PCA.?

採用された回答

Daniel Shub
Daniel Shub 2011 年 10 月 4 日
PCA can be used to reduce the dimensionality, but it is a lossy process. If you are not limited to lossless compression, then the princomp tutorial:
doc princomp
is a good starting point.
  3 件のコメント
Jonny
Jonny 2011 年 10 月 16 日
I cant access that doc too :(
Daniel Shub
Daniel Shub 2011 年 10 月 16 日
You need to have the stats toolbox to use princomp (and doc princomp). The documentation is available online here:
http://www.mathworks.com/help/releases/R2011a/toolbox/stats/princomp.html

サインインしてコメントする。

その他の回答 (1 件)

Carlos
Carlos 2013 年 2 月 5 日
In this document you can find something about PCA and Image http://people.maths.ox.ac.uk/richardsonm/SignalProcPCA.pdf

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