Mercurial > hg > smallbox
comparison util/unloc_solver.m @ 244:5c8bcdadb380 unlocbox
added UNLocBox interface, example and a 128x128 Lena
author | bmailhe |
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date | Tue, 04 Sep 2012 11:00:36 +0100 |
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243:1fbd28dfb99e | 244:5c8bcdadb380 |
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1 function [ sol ] = unloc_solver( b, A, param,name ) | |
2 %UNLOC_SOLVER Solve the minimisation problem using UNLOCBOX toolbox | |
3 % | |
4 % argmin_x ||x||_1 such that ||Ax-b||_2 < sima_t | |
5 | |
6 if nargin<3, param=struct; end | |
7 | |
8 % set parameters | |
9 if ~isfield(param, 'verbose'), param.verbose = 1; end | |
10 if ~isfield(param, 'T'), param.T = 256; end | |
11 if ~isfield(param, 'sigma'), param.sigma = 1; end | |
12 if ~isfield(param, 'max_iter'), param.max_iter = 100; end | |
13 if ~isfield(param, 'epsilon'), param.epsilon = 1e-3; end | |
14 | |
15 [b2,f1,f2,param] = small_to_unloc(b,A,param); | |
16 | |
17 if strcmpi(name, 'Douglas_Rachford') | |
18 sol=douglas_rachford(b2,f2,f1,param); | |
19 elseif strcmpi(name, 'Forward_Backard') | |
20 sol=forward_backward(b2,f1,f2,param); | |
21 elseif strcmpi(name, 'ADMM') | |
22 opL= @(x) x; | |
23 sol=admm(b2,f1,f2,opL,param); | |
24 else | |
25 error('UNLocBox tells you: Unknown solver name!') | |
26 end; | |
27 | |
28 | |
29 | |
30 end | |
31 |