Mercurial > hg > smallbox
view DL/Majorization Minimization DL/ExactDicoRecovery/dict_update_MOD_cn.m @ 219:4337e28183f1 luisf_dev
Modified help comments of wrapper_mm_DL.m, wrapper_mm_solver.m, SMALL_rlsdla.m & SMALL_AudioDenoise_DL_test_KSVDvsSPAMS.m. Moved wrapper_ALPS_toolbox from toolboxes to toolboxes/alps and added some extra help comments.
author | Aris Gretsistas <aris.gretsistas@elec.qmul.ac.uk> |
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date | Fri, 23 Mar 2012 20:48:25 +0000 |
parents | b14209313ba4 |
children |
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function [Phiout,unhatnz] = dict_update_MOD_cn(x,unhat,cvset) %% Method of Optimized Direction (MOD) Dictionary Update followed by the %% constraint on the column norms %% %% eps = .01; K = x*unhat'*inv(unhat*unhat'+eps*eye(size(unhat,1))); if cvset == 1, K = K*diag(min(sum(K.^2).^(-.5),1)); % Projecting on the convex constraint set else K = K*diag(sum(K.^2).^(-.5)); % Projecting on the Unit-Norm constraint set end %% depleted atoms cancellation %%% [Y,I] = sort(sum(K.^2),'descend'); RR = sum(Y>=.01); Phiout = K(:,I(1:RR)); unhatnz = unhat(I(1:RR),:); end