Making sparse signal representation

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Tinkul
Tinkul 2014-3-26
评论： Image Analyst 2014-3-27
How to make a sparse signal representation in matlab code.

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Image Analyst
Image Analyst 2014-3-26
Did you look up sparse in the help? Do you need further help?
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Tinkul
Tinkul 2014-3-27
Suppose i have an image of size 255x255.I have to make it sparse. Then how can I make it sparse? And how can find sparsity of that image.Please help....
Image Analyst
Image Analyst 2014-3-27
From the help:
S = sparse(A) converts a full matrix to sparse form by squeezing out any zero elements
So, how many zeros are in your image? And your image is so tiny that I wonder why you're even bothering with sparse. I never use it and I deal with a lot bigger images than that.

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