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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 SegmentationDefault < matlab.mixin.Copyable
% Default policy class for segmentation for DART.
%----------------------------------------------------------------------
properties (Access=public)
rho = []; % SETTING: Grey levels.
tau = []; % SETTING: Threshold values.
end
%----------------------------------------------------------------------
methods (Access=public)
%------------------------------------------------------------------
function settings = getsettings(this)
% Returns a structure containing all settings of this object.
% >> settings = DART.segmentation.getsettings();
settings.rho = this.rho;
settings.tau = this.tau;
end
%------------------------------------------------------------------
function this = estimate_grey_levels(this, ~, ~)
% Estimates grey levels
% >> DART.segmentation.estimate_grey_levels();
end
%------------------------------------------------------------------
function V_out = apply(this, ~, V_in)
% Applies segmentation.
% >> V_out = DART.segmentation.apply(DART, V_in);
V_out = ones(size(V_in)) * this.rho(1);
for n = 2:length(this.rho)
V_out(this.tau(n-1) < V_in) = this.rho(n);
end
end
%------------------------------------------------------------------
end
end
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