Mercurial > hg > smallbox
view util/snr.m @ 193:cc540df790f4 danieleb
Simple example that demonstrated dictionary learning... to be completed
author | Daniele Barchiesi <daniele.barchiesi@eecs.qmul.ac.uk> |
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date | Fri, 09 Mar 2012 15:12:01 +0000 |
parents | 88578ec2f94a |
children |
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function x = snr(s,r) % SNR calculates the signal-to-noise ratio between the signal s and its % representation r defined as: % SNR = 20*log10(||s||_2/||s-r||_2) err = s-r; x = mag2db(norm(s(:))/norm(err(:)));