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%--------------------------------------------------------------------------
% This file is part of the ASTRA Toolbox
%
% Copyright: 2010-2021, imec Vision Lab, University of Antwerp
% 2014-2021, CWI, Amsterdam
% License: Open Source under GPLv3
% Contact: astra@astra-toolbox.com
% Website: http://www.astra-toolbox.com/
%--------------------------------------------------------------------------
classdef OutputDefault < matlab.mixin.Copyable
% Default policy class for output for DART.
properties (Access=public)
directory = ''; % SETTING: Directory to save output.
pre = ''; % SETTING: Prefix of output.
save_images = 'no'; % SETTING: Save the images. 'no', 'yes' (='S') OR {'S', 'I', 'Mask', 'P'}
save_results = 'no'; % SETTING: Save the results. 'yes', 'no' OR {'base', 'stats', 'settings', 'S', 'V', 'V0'}
save_object = 'no'; % SETTING: Save the DART object. {'no','yes'}
save_interval = 1; % SETTING: # DART iteration between saves.
save_images_interval = []; % SETTING: Overwrite interval for save_images.
save_results_interval = []; % SETTING: Overwrite interval for save_results.
save_object_interval = []; % SETTING: Overwrite interval for save_object.
slices = 1; % SETTING: In case of 3D, which slices to save?
verbose = 'no'; % SETTING: Verbose? {'no','yes'}
end
methods (Access=public)
%------------------------------------------------------------------
function pre_initial_iteration(this, ~)
if strcmp(this.verbose,'yes')
tic
fprintf(1, 'initial iteration...');
end
end
%------------------------------------------------------------------
function post_initial_iteration(this, ~)
if strcmp(this.verbose,'yes')
t = toc;
fprintf(1, 'done in %f s.\n', t);
end
end
%------------------------------------------------------------------
function pre_iteration(this, DART)
if strcmp(this.verbose,'yes')
tic;
fprintf(1, '%s dart iteration %d...', this.pre, DART.iterationcount);
end
end
%------------------------------------------------------------------
function post_iteration(this, DART)
% print output
if strcmp(this.verbose,'yes')
t = toc;
s = DART.statistics.tostring(DART.stats);
fprintf(1, 'done in %0.2fs %s.\n', t, s);
end
% save DART object
if do_object(this, DART)
save(sprintf('%s%sobject_%i.mat', this.directory, this.pre, DART.iterationcount), '-v7.3', 'DART');
end
% save .mat
if do_results(this, DART)
base = DART.base;
stats = DART.stats;
S = DART.S;
V = DART.V;
V0 = DART.V0;
settings = DART.getsettings();
if ~iscell(this.save_results)
save(sprintf('%s%sresults_%i.mat', this.directory, this.pre, DART.iterationcount), '-v7.3', 'base', 'stats', 'S', 'V', 'V0', 'settings');
else
string = [];
for i = 1:numel(this.save_results)
string = [string this.save_results{i} '|'];
end
save(sprintf('%s%sresults_%i.mat', this.directory, this.pre, DART.iterationcount), '-v7.3', '-regexp', string(1:end-1));
end
end
% save images
if do_images(this, DART)
if ~iscell(this.save_images) && strcmp(this.save_images, 'yes')
output_image(this, DART, 'S')
elseif iscell(this.save_images)
for i = 1:numel(this.save_images)
output_image(this, DART, this.save_images{i});
end
end
end
end
%------------------------------------------------------------------
end
%----------------------------------------------------------------------
methods (Access=private)
function output_image(this, DART, data)
% 2D
if numel(size(DART.S)) == 2
eval(['imwritesc(DART.' data ', sprintf(''%s%s' data '_%i.png'', this.directory, this.pre, DART.iterationcount))']);
% 3D
elseif numel(size(DART.S)) == 3
for slice = this.slices
eval(['imwritesc(DART.' data '(:,:,slice), sprintf(''%s%s' data '_%i_slice%i.png'', this.directory, this.pre, DART.iterationcount, slice))']);
end
end
end
%------------------------------------------------------------------
function out = do_object(this, DART)
if strcmp(this.save_object,'no')
out = 0;
return
end
if numel(this.save_object_interval) == 0 && mod(DART.iterationcount, this.save_interval) == 0
out = 1;
elseif mod(DART.iterationcount, this.save_object_interval) == 0
out = 1;
else
out = 0;
end
end
%------------------------------------------------------------------
function out = do_results(this, DART)
if strcmp(this.save_results,'no')
out = 0;
return
end
if numel(this.save_results_interval) == 0 && mod(DART.iterationcount, this.save_interval) == 0
out = 1;
elseif mod(DART.iterationcount, this.save_results_interval) == 0
out = 1;
else
out = 0;
end
end
%------------------------------------------------------------------
function out = do_images(this, DART)
if numel(this.save_images_interval) == 0 && mod(DART.iterationcount, this.save_interval) == 0
out = 1;
elseif mod(DART.iterationcount, this.save_images_interval) == 0
out = 1;
else
out = 0;
end
end
%------------------------------------------------------------------
end
end
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