jens
9805599b00
git-svn-id: http://moon:8086/svn/matlab/trunk@146 801c6759-fa7c-4059-a304-17956f83a07c
40 lines
1.2 KiB
Objective-C
40 lines
1.2 KiB
Objective-C
## Copyright (C) 2020 Jens
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##
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## This program is free software: you can redistribute it and/or modify it
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## under the terms of the GNU General Public License as published by
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## the Free Software Foundation, either version 3 of the License, or
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## (at your option) any later version.
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##
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## This program is distributed in the hope that it will be useful, but
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## WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with this program. If not, see
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## <https://www.gnu.org/licenses/>.
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## -*- texinfo -*-
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## @deftypefn {} {@var{retval} =} supermatte (@var{input1}, @var{input2})
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##
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## @seealso{}
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## @end deftypefn
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## Author: Jens <jens@orion>
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## Created: 2020-10-04
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function [matte, dev, conf] = supermatte (im_rgb, ref_rgb, k_e)
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im_minus_ref = im_rgb - ref_rgb;
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var_im_minus_ref = var(im_minus_ref, 0, 3);
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# The base matte
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matte = 1-exp(-k_e*var_im_minus_ref);
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# Deviation from reference color
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dev = vecnorm(im_minus_ref, 2, 3);
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# Deviation from gray
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conf = mean(abs(im_minus_ref), 3);
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endfunction
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