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view DL/Majorization Minimization DL/softthreshold.m @ 171:e8428989412f danieleb
Added dictionary decorrelation functions and test script for Letters paper.
author | Daniele Barchiesi <daniele.barchiesi@eecs.qmul.ac.uk> |
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date | Thu, 06 Oct 2011 14:33:52 +0100 |
parents | b14209313ba4 |
children |
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% Soft threshold operator for matrices % [Y] = softthreshold(X,theta) % X : input matrix % theta : thresholding parameter function [Y] = softthreshold(X,theta) Y = X - min(theta,abs(X)).*sign(X);