资源简介
论文“Random Walks for Image Segmentation”matlab代码,可直接运行,论文中提供的代码还需要到别处下载几个函数才能运行,本文件已包含这几个函数。
代码片段和文件信息
function W=adjacency(edgesweightsN)
%Function W=adjacency(edgesweightsN) computes the weighted
% adjacency matrix of a point and edge set. For an unweighted
% matrix set weights equal to ones(1M) where M is the number
% of edges in the graph.
%
%Inputs: edges - A Mx2 list of M edges indexing into points
% weights - The weights used to determine matrix values.
% If not specified uses vector of all ones
% N - Optional number of nodes in the graph. Used if
% N > max(edges) (i.e. isolated nodes are present)
%
%Outputs: W - Adjacency matrix
%
%
%Note: Adjacency matrix is not of the Seidel type
% (i.e. all values are positive)
%5/19/03 - Leo Grady
% Copyright (C) 2002 2003 Leo Grady
% Computer Vision and Computational Neuroscience Lab
% Department of Cognitive and Neural Systems
% Boston University
% Boston MA 02215
%
% This program is free software; you can redistribute it and/or
% modify it under the terms of the GNU General Public License
% as published by the Free Software Foundation; either version 2
% of the License or (at your option) any later version.
%
% This program is distributed in the hope that it will be useful
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with this program; if not write to the Free Software
% Foundation Inc. 59 Temple Place - Suite 330 Boston MA 02111-1307 USA.
%
% Date - $Id: adjacency.mv 1.2 2003/08/21 17:29:29 lgrady Exp $
%========================================================================%
%If weights are not specified use unity weighting
if nargin == 1
weights=ones(size(edges1)1);
end
%If N is not specified use maximum values of edges
if nargin < 3
N=max(max(edges));
end
%Build sparse adjacency matrix
W=sparse([edges(:1);edges(:2)][edges(:2);edges(:1)] ...
[weights;weights]NN);
属性 大小 日期 时间 名称
----------- --------- ---------- ----- ----
目录 0 2016-10-28 11:48 random_walker_matlab_code\
文件 2101 2003-08-22 04:43 random_walker_matlab_code\adjacency.m
文件 66614 2005-10-31 13:01 random_walker_matlab_code\axial_CT_slice.bmp
文件 1955 2003-08-22 04:43 random_walker_matlab_code\dirichletboundary.m
文件 1972 2003-08-22 04:43 random_walker_matlab_code\laplacian.m
文件 3298 2003-08-22 04:43 random_walker_matlab_code\lattice.m
文件 3023 2003-08-22 04:43 random_walker_matlab_code\makeweights.m
文件 2365 2003-08-22 04:43 random_walker_matlab_code\normalize.m
文件 3847 2016-10-27 09:36 random_walker_matlab_code\random_walker.m
文件 1437 2016-10-27 11:52 random_walker_matlab_code\random_walker_example.m
文件 1282 2005-10-31 13:23 random_walker_matlab_code\README.txt
文件 2671 2003-08-22 04:43 random_walker_matlab_code\segoutput.m
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