comparison util/unloc_solver.m @ 244:5c8bcdadb380 unlocbox

added UNLocBox interface, example and a 128x128 Lena

+function [ sol ] = unloc_solver( b, A, param,name )
+%UNLOC_SOLVER Solve the minimisation problem using UNLOCBOX toolbox
+%
+% argmin_x ||x||_1 such that ||Ax-b||_2 < sima_t
+
+if nargin<3, param=struct; end
+
+% set parameters
+if ~isfield(param, 'verbose'), param.verbose = 1; end
+if ~isfield(param, 'T'), param.T = 256; end
+if ~isfield(param, 'sigma'), param.sigma = 1; end
+if ~isfield(param, 'max_iter'), param.max_iter = 100; end
+if ~isfield(param, 'epsilon'), param.epsilon = 1e-3; end
+
+[b2,f1,f2,param] = small_to_unloc(b,A,param); 
+
+if strcmpi(name, 'Douglas_Rachford')    
+    sol=douglas_rachford(b2,f2,f1,param);
+elseif strcmpi(name, 'Forward_Backard')    
+    sol=forward_backward(b2,f1,f2,param);
+elseif strcmpi(name, 'ADMM')  
+    opL= @(x) x;
+    sol=admm(b2,f1,f2,opL,param);
+else
+    error('UNLocBox tells you: Unknown solver name!')
+end;
+
+
+
+end
+